1988_Samsung_Linear_IC_Data_Book_Vol_2 1988 Samsung Linear IC Data Book Vol 2
User Manual: 1988_Samsung_Linear_IC_Data_Book_Vol_2
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c8 SAMSUNO · Linear Ie k (VOL. 2) Data Boo 1988 • Telecom • Industrial • Data Converter Copyright 1987 by Samsung Semiconductor All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photo copying, recording, or otherwise, without the prior written permission of Samsung Semiconductor. The information contained herein is subject to change without notice. Samsung assumes no responsibility for the use of any circuitry other than circuitry embodied in a Samsung product. No other circuit patent licenses are implied. SAMSUNG SEMICONDUCTOR DATA BOOK LIST I. Semiconductor Product Guide II. Transistor Data Book III. Linear IC Data Book IV. MOS Product Data Book V. High Performance CMOS Logic Data Book . VI. MOS Memory Data Book VII. SFET Data Book LINEAR Ie DATA BOOK VOLUME 1. AUDIO ICs VIDEO ICs VOLUME 2. TELECOM ICs VOLTAGE REGURATORs VOLTAGE REFERENCEs OPERATIONAL AMPLIFIERs COMPARATORs TIMERs . DATA CONVERTER ICs MISCELLANEOUS ICs TABLE OF CONTENTS (VOLUME 2) I. QUALITY AND RELIABILITY ........................................................ 19 II. PRODUCT GUIDE ............................................................................... 49 1. Function Guide ....................................................................................... 51 2. Cross Reference Guide ........................................................................... 60 . 3. Ordering Information ...........•.................................................................. 66 III. TELECOMMUNICATION ICs, ......................................................... 67 IV. INDUSTRIAL ICs ............................................................................... 1. 2. 3. 4. 5. Voltage Regulators ............................................................................... Voltage References .............................................................................. Operational Amplifiers.•......................................................................... Comparators ............... :........................................... :.............................. Timers ......................... :.......................................................................... 275 277 393 407 468 496 V. DATA CONVERTER ICs .................. ~ ............................................ 519 VI. MISCELLANEOUS ICs ..........................................................:........ 593 VII. PACKAGE DIMENSIONS ............................................................. 617 VIII. SALES OFFICES and MANUFACTURER'S' REPRESENTATIVES ;....................................................................... 629 (VOLUME 1) . I. QUALITY AND RELIABILITY II. PRODUCT GUIDE 1. Function Guide 2. Cross Reference Guide 3. Ordering Infonnation . III. AUDIO ICs IV. VIDEO ICs V. MISCELLANEOUS ICs VI. PACKAGE DIMENSIONS VII. SALES OFFICES and MANUFACTURER'S REPRESENTATIVES ALPHANUMERIC INDEX Device KA33V KA201A KA301A KA319 KA336-5_0 KA350 KA361 KA385-1.2 KA431 KA710C KA733C KA1222 KA2101 KA2102A KA2103L KA21 04 KA2105 KA2106 KA21 07 KA2130A KA2131 KA2133 KA2134 KA2135 KA2136 KA2137 KA2153 KA2154 KA2181 KA2182 KA2183 KA2201B KA2201/N KA2206 KA22062 KA2209 KA2210 KA2211 KA2212 KA2213 KA22131 KA22135 KA2214 KA2220 KA2221 KA22211 KA2223 KA22233 KA22235 KA2224 Function Silicon Monolithic Bipolar Integrated Circuit Voltage Stabilizer for Electronic Tuner Single Operational Amplifier Single Operational Amplifier Dual High Speed Voltage Comparator Voltage Reference Diode 3 AMP Adjustable Positive Voltage Regulator High Speed Voltage Comparator Micropower Voltage Reference Diode Programmable Precision Reference High Speed Voltage Comparator Differential Video Amplifier Dual Low Noise Equalizer AMP TV Sound IF AMP TV Sound System Sound Mute System for TV Auto Power off and Sound Mute System for TV Limiter AMP and Detector for a TV SIF Dual Sound Multiplex for a TV SIF DC Volume, Tone Control Circuit TV Vertical Deflection System TV Vertical Output Circuit 1 Chip Deflection System Color TV Deflection Signal Processing IC Horizontal Signal Processing IC Low Noise TV Vertical Deflection System TV Horizontal Processor Video-Chroma Deflection System for a Color TV Video-Chroma Deflection System for a Color TV Remote Control Pre-AMP Remote Control Pre-AMP Remote Control Pre-AMP 0.5W Audio Power AMP 1.2W Audio Power AMP 2.3W Dual Audio Power AMP 4.5W Dual Power AMP Dual Low Voltage Power AMP 5.5W Dual Power AMP 5.8W Dual Power AMP 0.5W Audio Power AMP One Chip Tape Recorder System Dual Pre-Power AMP for Auto Reverse Dual Pre-Power AMP and DC Motor Speed Controller 1W Dual Power AMP Equalizer AMP with ALC Dual Low Noise Equalizer AMP Dual Low Noise Equalizer AMP 5 Band Graphic Equalizer AMP 3 Band Dual Graphic Equalizer AMP 5 Band Graphic Equalizer AMP Dual Equalizer AMP with ALC Package TO-92 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP TO-92 TO-3P 14 DIP/14 SOP TO-92 TO-9218 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 SIP 14 DIP 14 DIP HIS 8 SIP 9 SIP 9 SIP 16 DIP 12 SIP 10 SIP HIS 10 SIP HIS 16 DIP HIS 18 DIP 12 SIP 12 ZDIP/F 16 DIP 42 DIP 42 DIP 8 SIP 8 SIP 8 SIP 8 DIP 8 DIP 12DIP/F 12 SIP HIS 8 DIP 12 SIP HIS 12 SIP HIS 9 SIP 14 DIP HIS 24 SOP 22 SDIP 14 DIP HIS 9 SIP 8 SIP 8 SIP 16 DIP 22 DIP 18 ZIP 14 DIP Page 595 407 407 468 393 277 472 397 401 474 412 Vol.1 . Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 ALPHANUMERIC INDEX Device KA22241 KA22251D KA22261 KA2230 KA22421/D KA22424 KA2243 KA2244 KA22441 KA2245 KA22461 'KA2247 KA22471 KA2248A/D KA2249/D KA2261 , KA2262 KA2263 KA2264/D KA2265 , KA22682 KA2268N KA2281 KA2283 KA2284 KA2285 KA2286 KA2287 KA2288 KA2303 KA23Q4 KA2401 KA2402 KA2404 KA2407 KA241 0 KA2411 KA2412A KA2413 KA2418 KA2419 KA2425A/B KA2580A KA2588A KA2605 KA2606 KA2615 KA2616 (Continued) Function Dual Equalizer AMP with ALC Dual Pre-AMP for 3V Using Dual Equalizer AMP with REC AMP 9-Program Music Selector AM 1 Chip Radio AM/FM 1 Chip Radio AM/FM I F System FM IF System for Car Radio FM IF System for Car Stereo FM IF System for Car Radio, ' Electronic ,Tuning AM Radio Receiver for Car Stereo FM IF/AM Tuner System FM IF/AM Tuner System 3V FM IF/AM Tuner System FM Front End for Portable Radio FM Stereo Multiplex Decoder FM Stereo Multiplex Decoder for Car Stereo FM Stereo Multiplex Decoder FM Stereo Multiplex Decoder VCO Non-Adjusting FM Stereo Multiplex Decoder 1 Chip TV MPX Demodulator 1 Chip TV Sound MPX 5 DOT Dual LED Level Meter Driver 5 DOT Dual LED Level Meter Driver 5 DOT LED Level Meter Driver 5 DOT LED Level Meter Driver 5 DOT LED Linear Level Meter Driver 5 DOT LED Linear Levei Meter Driver 7 DOT LED Level Meter Driver Toy Radio COntrol Actuator Toy Radio Control Actuator DC Motor Speed Controller Low Voltage DC Motor Speed Controller DC Motor Speed Controller DC Motor Speed Controller Tone Ringer . Tone Ringer Telephone Speech Circuits Dual Tone Multi Frequency Generator Tone Ringer with Bridge Diode Tone Ringer with Bridge Diode Telephone Speech Network with Dialer Inteiiace 8-Channel Source Drivers 8-Channel Source Drivers SYNC Separator SYNC Separator LED and Lamp Driver LED and Lamp Driver Page Package 9 SIP 16· DIP/16 SOP 16 DIP 22 DIP 16 DIP/16 SOP 16 DIP 16 DIP 9 SIP 16 ZIP 7 SIP 19 ZIP 16 DIP 16 DIP' 16 DIP/16 SOP 7 SIP/8 SOP 16 DIP 16 ZIP 9 SIP 9 SIP/16 SOP 16 DIP 28 DIP 28 DIP 16DIP 16 DIP 9 SIP 9SIP 9 SIP 9 SIP 16 DIP 9 SIP 9 SIP 8 DIP 8 DIP TO-92L ' TO-126 8 DIP 8 DIP 14 DIP 16 DIP 8 DIP 8 DIP 18 DIP 18 DIP 20 DIP 9 SIP 9 SIP 9 SIP, 9 SIP - Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol: 1 69 69 75 83 108 108 122 599 599 Vol. 1 Vol. 1 Vol. 1 Vol. 1 ALPHANUMERIC INDEX Device KA2617 KA2618 KA2651 KA2803 KA2804 KA2911 KA2912 KA2913A KA2914A KA2915 KA2916 KA2917 KA2918 KA2919 KA2944 KA2945 KA2983 KA2988 KA6101 KA6102 KA3524 KA78540 KA78TXX KA8301 KA8302 KA8401 KA9256 KAD0808 KAD0809 KAD0820A/B KDA0800 KDA0801 KDA0802 KF351 KS555 KS555H KS556' KS5803A1B KS5805A1B KS5808 KS5812 KS5819 KS5820 KS5821 KS5824 KS7126 KS25C02 (Continued) Function LED and Lamp Driver LED and Lamp Driver Fluorescent Display Drivers Low Power Consumption Earth Leakage ,Detector Zero Voltage Switch Video IF System for Color TV Video IF Processor for BIW TV Video and Sound IF AMP for Monochrome TV Receivers Video IF +'SIF System TV VIF & SIF & Deflection System Video IF System for Color TV Video and Sound IF AMP for Monochrome TV Receivers Video IF + SIF System VIF + SIF System for Color TV Write & Read AMP Video AMP Switch less Recording/Play Back AMP Chroma Signal Processor Analog Interface Circuit for Teletex 'System Analog Interface Circuit for'Teletex System Regulator Pulse Width Modulator Switching Regulator 3A Positive Voltage Regulator Driver for VTR Servo Control AMP VTR Audio Switchless Recording/Play Back AMP Dual Power Operational Amplifier ' 8 Bit I'p·Compatible AID Converter with 8·Channel Multiplexer 8 Bit I'p·Compatible AID Converter. with 8·Channel Multiplexer 8 Bit High Speed I'P Compatible AID Converter with Track/Hold Function 8 Bit D/A Converter 8 Bit D/A Converter 8 Bit D/A Converter Single Operating Amplifier CMOl3 Timer CMOS Timer CMOS Timer Remote Control Transmitter Telephone Pulse Dialer with Redial Dual Tone Multi Frequency Dialer Quad Universial Asychronous Receiver and Transmitter Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Universial Asychronous Receiver and Transmitter 3 1/2 Digit AID Conve,rter 8 Bit CMOS Successive Approximation Register Package 9 SIP 9 SIP 18 DIP 8 DIP 8 DIP 16 DIP 14 DIP HIS 16 DIP 24 DIP 28 DIP 16 DIP 16 DIP 24 DIP 30 SSD 28 DIP 28 DIP 18 DIP 28 DIP 18'DIP 18 DIP 16 DIP 16 DIP TO·220 10 SIP HIS 12 SIP 24 ZIP 10 SIP HIS Page Vol. 1 Vol. 1 604 607 610 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 ,Vol. 1 285 306 312 Vol. 1 Vol. 1 Vol. 1 419 28 DIP 549 28 DIP 549 20 DIP 560 16 DIP 16 DIP 16 DIP 8 DIP/8 SOP 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP ' 16 DIP/20 SOP 18'DIP 16 DIP 40 DIP 22 DIP/SDIP 18 DIP 22DIP/SDIP 24 DIP 40 DIP 16 DIP/24 SDIP 580 580 580 421 496 501 505 Vol. 1 130 146 152 162 172 162 180 568 586 ; ALPHANUMERIC INDEX Device KS25C03 KS25C04 KSV3100A . KSV3110 KSV3208 KT3040J KT3054J KT3064J KT5116J LM211 LM224/A LM239/A LM248 LM2581~ LM293/A LM311 LM317 LM323 LM324/A LM339/A LM348· LM3581A/S LM3861S/D LM393/A1S LM567C LM567L LM723 LM741C/ElI LM2901 LM2902 LM2903 LM2904 LM3302 MC14581C/SII MC1488 MC1489/A MC3303 MC3361 MC3403 MC45581C/A/SII MC78XX MC78LXX MC78MXX MC79XX MC79MXX NE555 NE556 NE558 (Continued) Function 8 Bit CMOS Successive Approximation Register 12 Bit CMOS Successive Approximation Register H,igh-Speed AlD-DA Converter High-Speed AlD-DA Converter High-Speed AID Converter PCM Monolithic Filter COMBO CODEC COMBO CODEC wLaw Companding CODEC Voltage Comparator Quad Operational AmplHier Quad Differential Comparator Quad Operational Amplifier Dual Operational Amplifier Dual Differential Comparator Voltage Comparator 3-Terminal Positive Adjustable Regulator 3-Terminal Positive Voltage Regulator Quad Operational Amplifier Quad Differential Comparator Quad Operational Amplifier Dual Operational Amplifier Low Voltage Audio Power AMP Dual Differential Comparator Tone Decoder Micropower Tone Decoder Precision Voltage Regulator Single qperationai Amplifier, Quad Differential Comparator Quad Operational Amplifier Dual Differential Comparator Dual Operational Amplifier Quad Differential Comparator Dual Operational Amplifier Quad Line Driver Quad Line Receiver Quad Operational Amplifier Low Power Narrow Band FMIF Quad Operational Amplifier Dual Operational Amplifier 3-Terminal 1A Positive Voltage Regulator 3-Terminal Positive Voltage Regulator 3-Terminal 0.5A Positive Voltage Regulator 3-Terminal Negative Voltage Regulator 3-Terminal 0.5A Negative'Voltage Regulator Timer Dual Timer Quad Timer Package Page 16 DIP/24SDIP 24DIP/24SDIP 40 DIP 40 DIP 28 DIP 16 CERDIP 16 CERDIP 20 CERDIP 16 CERDIP 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 8 DIP/8 SOP 8 DIP/8 SOP TO-220 TO-3P 14 DIP/14 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8, SOP/9 SIP 9 SIP/8 DIP/8 SOP 8 DIP/8 SOP 8 DIP/S SOP 8 DIPj8 SOP 14 DIP/14 SOP 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP. 8 DIP/8 SOP/9 SIP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 14 DIPI14 SOP 14 DIP/14 SOP 14 DIPI14 SOP 16 DIP/16 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP TO-220 TO-92 TO-220 TO-220 TO-220 8 DIP/8 SOP 14 DIP/14 SOP 16 DIP/16 SOP 586 586 521 531 541 191 200 214 226 476 423 481 432 438 489 476 291 296 423 481 432 438 613 489 239 247 300 446 481 423 489 438 481 452 257 264 456 270 456 463 323 353 364 377 387 509 513 516 PRODUCT INDEX 1. Audio Application Device KA1222 KA2201B KA2201lN KA2206 KA22062 ·KA2209 KA221 0 KA2211 KA2212 KA2213 KA22131 KA22135 KA2214 KA2220 KA2221 KA22211 KA2223 KA22233 KA22235 KA2224 KA22241 KA2225/D KA22261 KA2230 KA22421/D KA22424 KA2243 KA2244 KA22441 KA2245 KA22461 KA2247 KA22471 KA2248A1D KA2249/D KA2261 KA2262 KA2263 KA2264/D KA2265 . KA2281 KA2283 KA2284 KA2285 KA2286 KA2287 KA2288 LM386/S/D KA2303 KA2304 KA2401 . Function Dual Low Noise Equalizer AMP O.5W Audio Power AMP 1.2W Audio Power AMP 2.3W Dual Audio Power AMP 4.5W Dual Power AMP Dual Low Voltage Power AMP 5.5W Dual Power AMP 5.8W Dual Power AMP O.5W Audio Power AMP One Chip Tape Recorder System Dual Pre·Power AMP for Auto Reverse Dual Pre·Power AMP and DC Motor Speed Controller 1W Dual Power AMP Equalizer AMP with ALC Dual Low Noise Equalizer AMP Dual Low Noise Equalizer AMP 5 Band Graphic Equalizer AMP 3 Band Dual Graphic Equalizer AMP 5 Band Graphic Equalizer AMP Dual Equalizer AMP with ALC Dual Equalizer AMP with ALC Dual Pre·AMP for 3V Using Dual Equalizer AMP with REC AMP 9-Program Music Selector AM 1 Chip Radio AM/FM 1 Chip Radio AM/FM IF System FM IF System for Car Radio FM IF System for Car Stereo FM IF System for Car Radio Electronic Tuning AM Radio Receiver for Car Stereo FM IF/AM Tuner System FM IF/AM Tuner System 3V FM IF/AM Tuner System FM Front End for Portable Radio FM Stereo Multiplex Decoder FM Stereo Multiplex Decoder for Car Stereo FM Stereo Multiplex Decoder FM Stereo Multiplex Decoder VCO Non-Adjusting FM Stereo Multiplex Decoder 5 DOT Dual LED Level Meter Driver 5 DOT Dual LED Level Meter Driver .5 DOT LED Level Meter Driver 5 DOT LED Level Meter Driver 5 DOT LED Linear Level Meter Driver 5 DOT LED Linear Level Meter Driver 7 DOT LED Level Meter Driver Low Voltage Audio Power AMP Toy Radio Control Actuator Toy Radio Control Actuator DC Motor Speed Controller Package Page 8 SIP 8 DIP 8 DIP 12DIP/F 12 SIP HIS 8 DIP 12 SIP HIS 12 SIP HIS 9 SIP 14 DIP HIS 24 SOP 22 SDIP .14 DIP HIS 9 SIP 8 SIP 8 SIP 16 DIP 22 DIP 18 ZIP 14 DIP 9 SIP 16 DIP/16 SOP 16 DIP 22 DIP 16 DIP/16 SOP 16 DIP 16 DIP 9SIP 16 ZIP .7 SIP 19 ZIP 16 DIP 16 DIP 16 DIP/16 SOP 7 SIP/8 SOP 16 DIP 16 ZIP 9 SIP 9 SIP/16 SOP 16 DIP 16 DIP 16 DIP 9 SIP 9 SIP 9 SIP 9SIP 16 DIP 9 SIP/8 DIP/8 SOP 9 SIP 9 SIP 8 DIP Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 613 Vol. 1 Vol. 1 Vol. 1 PRODUCT INDEX (Continued) 1. Audio Appllcatlori (Continued) Device KA2402 KA2404 KA2407 Function Low Voltage DC Motor Speed Controller DC Motor Speed Controller DC Motor Speed Controller Package 8 DIP TO-92L TO-126 Page Vol. 1 Vol. 1 Vol. 1 2. Video Application Device KA2101 KA2102A KA2103L KA21 04 KA2105 KA2106 KA2107 KA2130A KA2131 KA2133 KA2134 KA2135 KA2136 KA2137 KA2153 KA2154 KA2181 KA2182 KA2183 KA22682 KA2268N KA2605 KA2606 KA2615 KA2616 KA2617 KA2618 KA2911 KA2912 KA2913A KA29l4A KA2915 KA2916 KA2917 KA2918 KA2919 KA2944 KA2945 KA2983 KA2988 KA6101, KA6102 KA8301 KA8302 KA8401 KS5803A/B Function TV Sound IF AMP TV Sound System Sound Mute System for TV Auto Power off and Sound Mute System for TV limiter AMP and Detector for a TV SIF Dual Sound Multiplex for a TV SIF DC Volume, Tone Control Circuit TV Vertical Deflection System TV Vertical Output Circuit 1 Chip Deflection System Color TV Deflection Signal Processing IC Horizontal Signal Processing IC Low Noise TV Vertical Deflection System TV HOrizontal Processor Video-Chroma Deflection System for a Color TV Video-Chroma Deflection System for a Color TV Remote Control Pre-AMP Remote Control Pre-AMP j'\emote Control Pre-AMP 1 Chip TV MPX Demodulator 1 Chip TV Sound MPX SYNC Separator SYNC Separator LED and Lamp Driver LED and Lamp Driver LED and Lamp Driver LED and Lamp Driver Video IF System for Color TV Video I F Processor for BIW TV Video and Sound IF AMP for Monochrome TV Receivers Video IF + SIF System TV VIF & SIF & Deflection System Video IF System for Color TV Video and Sound IF AMP for Monochrome TV Receivers Video IF+SIF System VIF + SIF System for Color TV Write & Read AMP Video AMP Swltchless Recording/Play Back AMP Chroma Signal Processor Analog Interface Circuit for Teletex System Analog Interface Circuit for Teletex System Driver for VTR Servo Control AMP VTR Audio Swltchless Recordlng/Play Back AMP Remote Control Transmitter Package 14 DIP 14 DIP HIS 8 SIP 9 SIP 9 SIP 16 DIP 12 SIP 10 SIP HIS 10 SIP HIS 16 DIP HIS 18 DIP 12 SIP 12 ZDIP/F 16 DIP 42 DIP 42 DIP 8 SIP 8SIP 8 SIP 28 DIP 28 DIP 9 SIP 9SIP 9 SIP 9 SIP 9SIP 9 SIP 16 DIP 14 DIP HIS 16 DIP 24 DIP 28 DIP 16 DIP 16 DIP 24 DIP 30 SSD 28 DIP 28 DIP 18 DIP 28 DIP 18 DIP 18 DIP 10 SIP HIS 12 SIP 24 ZIP 16 DIP/20 SOP Page Vol. 1 Vol. 1 VOl:, 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol.,l Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 Vol. 1 PRODUCT INDEX (Continued) 3. Telecommunication Application Function. Device KA241 0 KA2411 KA2412A KA2413 KA2418 KA2419 KA2425A/B KS5805A/B KS5808 KS5812 KS5819 KS5820 KS5821 KS5824 KT3040J KT3054J KT3064J KT5116J LM567C LM567L MC1488 MC1489/A MC3361 KA2580A KA2588A KA2651 Package Tone· Ringer Tone Ringer Telephone Speech Circuits Dual Tone Multi Frequency Generator Tone Ringer with Bridge Diode . Tone ·Rlnger with Bridge Diode Telephone Speech Network with Dialer Interface Telephone Pulse Dialer with Redial Dual Tone Multi Frequency Dialer Quad Universial Asychronous Receiver and Transmitter Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Universlal Asychronous Receiver and Transmitter PCM Monolithic Filter COMBO CODEC COMBO CODEC ,.-Law Companding CODEC Tone Decoder Mlcropower Tone Decoder Quad Line Driver Quad Line Receiver Low Power Narrow Band FM IF 8-Channel Source Drivers 8-Channel Source Drivers Fluorescent Display Drivers - 8 DIP 8 DIP 14 DIP 16 DIP 8 DIP 8 DIP 18 DIP 18 DIP 16 DIP 40 DIP 22 DIP/SDIP 18 DIP 22DIP/SDIP 24 DIP 16 CERDIP 16 CERDIP 20 CERDIP 16 CERDIP 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 16 DIP/16 SOP 18 DIP 20 DIP 18 DIP Page 69 69 75 83 108 108 112 130 146 152 162 172 162 180 19' 200 . 214 226 239 247 257 264 270 599 599 604 4. Industrial Application Device KA201A KA301A KA319 KA336-5.0 KA350 KA361 KA385-1.2 KA431 KA710C KA733C KA3524 KA9256 KF351· KS555 KS555H KS556 LM211 Function Single Operational Amplifier Single Operational Amplifier Dual High Speed Voltage Comparator Voltage Reference Diode 3 AMP Adjustable Positive Voltage Regulator High Speed Voltage Comparator Micropower Voltage Reference· Diode Programmable Precision Reference High Speed Voltage Comparator Differential Video Amplifier Regulator Pulse Width Modulator Dual Polt'l(er Operational Amplifier Single Operating Amplifier CMOS Timer CMOS Timer CMOS Timer Voltage Comparator Package Page 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP TO·92 TO·3P 14 DIP/14 SOP TO·92 TO·9218 DIP/S SOP 14 DIP/14 SOP 14 DIP/14 SOP 16 DIP 10 SIP H/S 8DIP/8·S0P 8 DIP/8 SOP 8 DIP/S SOP 14 DIP/14 SOP 8 DIP/8 SOP 407 407 463 393 277 472 397 401 474 412 285 419 421 496 501 505 476 PRODUCT INDEX Industrial Application (Continued) (Continued) Device LM224/A LM239/A LM248 LM258/A LM293/A LM311 LM317 LM323 LM324/A LM339/A LM348 LM3581A/S LM3931A1S LM723 LM741C/ElI LM2901 LM2902 LM2903 LM2904 LM3302 MC14581C/SII MC3303 MC3403 MC45581CIAISIl MC78XX MC78LXX MC78MXX MC79XX MC79MXX KA78540 KA78TXX NE555 NE556 NE558 KA2803 KA2804 KA33V Function Quad Operational Amplifier Quad Differential Comparator Quad Operational Amplifier JDual Operational Amplifier Dual Differential Comparator Voltage Comparator 3-Terminal Positive Adjustable Regulator 3-Terminal Positive Voltage Regulator Quad Operational Amplifier . Quad Differential Comparator Quad Operational Amplifier Dual Operational Amplifier Dual Differential Comparator Precision Voltage Regulator Single Operational Amplifier Quad Differential Comparator Quad Operational Amplifier Dual Differential Comparator iDual Operational Amplifier Quad Differential Comparator Dual Operational Amplifier Quad Operational Amplifier Quad Operational Amplifier Dual Operational Amplifier 3-Terminal 1A Positive Voltage Regulator 3-Terminal Positive Voltage Rllgulator 3-Terminal 0.5A Positive Voltage Regulator 3-Terminal Negative Voltage Regulator 3-Terminal 0.5A Negative Voltage Regulator Switching Regulator 3A Positive Voltage Regulator Timer Dual Timer Quad Timer Low Power Consumption Earth Leakage Detector Zero Voltage Switch Silicon Monolithic Bipolar Integrated Circuit Voltage Stabilizer for Electronic Tuner Package Page 14 DIP/14 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP ·8 DIP/8 SOP 8 DIP/8 SOP TO-220 TO-3P 14 DIP/14 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 8 DIP/8 SOP 14 DIP/14 SOP 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP 8 DIP/8 SOP/9 SIR 14 DIP/14 SOP' . 8 DIP/8 SOP/9 SIP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP TO-220 TO-92 TO-220 TO-220 TO-220 16 DIP TO-220 8 DIP/8 SOP 14 DIP/14 SOP 16 DIP/16 SOP 8 DIP 8 DIP TO-92 423 481 432 438 489 476 291 296 423 481 432 438 489 300 446 481 423 489 438 481 452 456 ·456 463 323 353 364 377 387 306 312 509 513 516 607 610 295 Package Page 5. Data Converter Application Device KSV3100A KSV3110 KSV3208 KAD0808 KAD0809 KAD0820A/B KDA0800 KDA0801 KDA0802 KS25C02 KS25C03 KS25C04 KS7126 Function High-Speed A/D-DA Converter High-Speed AlD-DA Converter High-Speed AID Converter 8 Bit I-'p-Compatible AID Converter with 8-Channel Multiplexer 8 Bit I-'p-Compatible AID Converter with 8-Channel Multiplexer 8,Bit High Speed I-'P Compatible AID Converter with Track/Hold Function 8 Bit D/A Converter 8 Bit D/A Converter 8 Bit D/A Converter 8 Bit CMOS Successive Approximation Register 8 Bit CMOS Successive Approximation Register 12 Bit CMOS Successive Approximation Register 3 1/2 Digit AID Converter 40 DIP 40 DIP 28 DIP 521 531 541 28 DIP 549 28 DIP 549 20 DIP 560 16 DIP 16 DIP 16 DIP 16 DIP 16 DIP 24SDIP 40 OIP 580 580 580 586 586 586 568 • . QUALITY & RELIABILITY " ;: ,1,'1 ;~ f ,'f t·, I .: ~ 1 • ,,', _ ...v ,', ' QUALITY and RELIABILITY INTRODUCTION Samsung's linear IG products are among the most reliable in the industry. Samsung has always made a commit· ment to achieve the highest possible quality, reliability, and customer satisfaction with its products. Extensive qualification, monitor and outgoing programs are used to scrutinize product quality and reliability. ·Stringent controls are applied to every wafer fabrication and assembly lot to achieve reproducibility, and therefore maintain product reliability. In this chapter, the quality and reliability programs established at Samsung will be discussed. In addition, a description of reliability theory, reliability tests and various support efforts provides a broad framework from which to compre· hend Samsung quality and reliability. . To better understand the Quality Department's role in product develoment and manufacturing, Ii detailed diagram is listed below. As can be noted, Quality Engineering is involved in all phases, save that of initial product planning. STEP ~ z SALES 1 1 SPEC. REVIEW :II! ~ .....a: DESIGN 1 1 I DESIGN REVIEW 1 z PRODUCTION CONTROL PRODUCTION I COUNCIL FOR 'DEVELOPMENT I I Cl II. OC/OA 1 MARKET SURVEY I ~ "- PROCESS ENG'S QUALIFICATION FOR RAW MATERIAL 1 1 l m Q I TRIAL MFG I' EVALUATION & QUALIFICATION 1 z ~ STANDARDIZATION 1 ~ ~ APPROVAL 1 ·II-----------------------l "III a: "- QUALIFICATION 1 1 I z S u MASS PRODUCTION 0 I~=P=R=O=C~==S=M=O=N=IT=OR==~~ "- 1 c· I CI a: :g :II! I Iii ":II!a: 1 1 I RELIABILITY TEST LOT ACCEPTANCE TEST FAILURE ANALYSIS CLAIM J INCOMING INSP. PROCESS CONTROL :> P.P 1 INITIATE CORRECTIVE ACTION I SHIPPING 1 CUSTOMER 1 C Figure 1. Quality Assurance During c8 SAMSUNG SEMICONDUCTOR Develop~ent 21 I QUALITY and RELIABILITY QUALITY AND RELIABILITY PROGRAM Since Samsung manufactures many different products using a variety of fab and assembly technologies, close attention must be paid to avariety of (potential) reliability hazards. The Samsung quality and reliability department has established a variety of procedures and programs to assess, understand, control, and eliminate reliability problems. The major categories of reliability program management are: ' a. Qualification program b. Monitor program c. Outgoing quality program QUALIFICATION PROGRAM Samsung' qualification procedures are used mainly to confirm the major characteristics and reliability attributes of new technologies or products for introduction to Samsung manufacturing. The program is also utilited to evaluate changes to existing technologies or raw materials. The purpose of this program is to simulate all relevant user conditions, via accelerated and standard methods, prior to product shipment. The stresses used for qualification are detailed in following sections. MONITOR PROGRAM Twice per year, devices duplicate their qualification tests to obtain long-term reliability data for Linear ICs. In this way historical data is collected and analyzed over all part types and thus assures the customer of ongoing device quality. These results are summarized in reliability reports issued periodically by Samsung Semiconductor. OUTGOING QUALITY PROGRAM All wafer lots are required to pass a "QC-reliability-gate" prior to product shipment. The purpose is to track "Lot· by-lot" quality and reliability to catch any potential product anomaly at the factory site. The customer can then expect only quality material to be delivered, from Samsung. Any lot that fails the procedure l,isted below is scrutinized heavily, to make sure that corrective action takes place immediately. By paying such close attention to every lot, product costs are kept at a minimum. Samsung's customer return rate is extremely low, which is where our tough outgoing policy is most powerful. Such a tight clamp to protect our customers is how we can assure that all Samsung's products are released with the highest confidence level possible. HOPL 168HR PCT 48HR REJECT (Corrective Action Required) WAREHOUSE INCOMING INSPECTION Figure 2. Linear Ie Outgoing Flow c8 SAMSUNG SEMICONDUcroR 22 QUALITY and RELIABILITY RELIABILITY TESTS Samsung has established a comprehensive reliability program to monitor and ensure the ongoing reliability of the linear IC family. This program involves not only reliability data collection and analysis on existing parts, but also rigorous in-line quality controls for all products. Listed below are details of tests performed to ensure that manufactured product continues to meet Samsung's stringent quality standards. In line quality controls are reviewed extensively in later sections. The tests run by the quality department are accelerated tests, serving to model "real world" applications through boosted temperature, voltage, and/or humidities. Accelerated conditions are used to derive device knowledge through means quicker than that of typical application situtations. These accelerated conditions are then used to assess differing failure rate mechanisms that correlate directly with ambient conditions. Following are summaries of various stresses (and their conditions) run by Samsung on linear IC products. HIGH TEMPERATURE OPERATING LIFE TEST (HOPL) (TJ=125°C, Vee = Vee max, static) High temperature operating life test is performed·to measure actual field reliability. Life tests of l000HR to 2000HR durations are used to accelerate failure mechanisms by operating the device at an elevated ambient temperature (125°C). Data obtained from this test are used to predict product infant mortality, early life, and random failure rates. Data are translated to standard operating temperatures via failure analysis to determine the activation energy of each of the observed failures, using the Arrhenius relationship as previously discussed. WET HIGH TEMPERATURE OPERATING LIFE TEST (WHOPL) (Ta=85°C, R.H.=81%, Vee = Vee opt, statiC) Wet high temperature operating life test is performed to evaluate the moisture resistanr.e characteristics of plastiC encapsulated componenots. Long time testing is performed under static bias conditions at 85°C/81 percent relative humidity with nominal voltages. To maximize metal corroSion, the biasing configuration utilizes low power levels. INTERMITTENT OPERATING LIFE (IOPL) (Pmax, 25°C, 2min on/2 min off) This test is normally applied to scrutinize die bond thermal fatigue. A stressed device undergoes an "ON" cycle, where there is thermal heating due to power dissipation, and an "OFF" cycle, where there is thermal cooling due to lack of inputted power. Die attach (between die and package) and bond attach (between wire and die) are the critical areas of concern. HIGH TEMPERATURE STORAGE TEST (HTS) (Ta = 125°C, UNBIASED) High temperature storage is a test in which devices are subjected to elevated temperatures with no applied bias. The test is used to detect mechanical instabilities such as bond integrity, and process wearout mechanisms. PRESSURE COOKER TEST (PCT) (121°C, 15PSIG, 100% R.H., UNBIASED) The pressure cooker test checks for resistance to moisture penetration. A highly pressurized vessel is used to force water (thereby promoting corrosion) into packaged devices located within the vessel. TEMPERATURE CYCLING (TIC) (-65°C to + 150°C, AIR, UNBIASED) This stess uses a chamber with alternating temperatures of - 65°C and + 150°C (air ambient) to thermally cycle devices within it. No bias is applied. The cycling checks for mechanical integrity of the packaged device, in particular bond wires and die attach, along with metallpolysilicon microcracks. THERMAL SHOCK (TIS) (-65°C to + 150°C, LIQUID, UNBIASED) This stress uses a chamber with alternting temperatures of - 65°C to + 150°C (liquid ambient) to thermally cycle devices within it. No bias is applied. The cycling is very rapid, and primarily checks for die/package compatibility. c8 SAMSUNG SEMICONDUCTOR 23 I . QUALITY and RELIABILITY RELIABILITY TEST RESULTS· This section is divided into two parts-actual and predicted test results. Actual test results are those derived via accelerated stressing done by the department. Predicted results are calculated by taking actual test results and derating them using statistical and mathematical models to determine device performance in "real-time" user conditions. ac ACTUAL TEST RESULTS Stress Conditions HOPL Tj = 125°C . Vcc = Vee max (KA2102A) Number of Devices Number of Device Hours/Cycles Number of Failures % Failures per l000HRS (Cycles) (60% UCL) 100 100,000 0 0.91%/1K HR WHOPL 85° C/81 % R.H. Vcc = Vee opt 100 100,000 0 0.91%I1K HR ·IOPL Ta=25°C Vee = Vee max 100 100,000 0 0.91%/1K HR HTS Ta= 125°C Unbiased. 100 100,000 0 0.91%/1K HR PCT 121°C 15 PSIG 100 16,800 0 5.4 %/1K HR TIC -65°C to 150°C Air to Air 100 10,000 0 9.1 %/1K CL TIS :... 65°C to 150°C Liquid to Liquid 100 10,000 0 9.1 %/1K CL PREDICTED .TEST RESULTS The Arrhenius equation, which is reviewed in another seotion of this chapter, can be applied to derive typical "userconditio(l" device failure rates. STESS: HOPL 100,000 Device Hours at 125°C Average Activation Energy: 1.(> eV. De-Rating to User Conditions Yields: 55°C Operation 70°C Operation Equivalent Device Hours % Failures Per 1000 Hours (60% UCL) "FITs ""MTBF. (Years) Equivalent Device Hours % Failures Per 1000 Hours (600% UCL)· "FITs ""MTBF (Years) 10.7 x 1()6 0.0084 84 1359 50.4 x 106 0.0018 18 6342 • FIT : Failure in time or failure unit. Represents the number of failures expected for 109 (one billion) device hours. •• MTBF: Mean time between failures. c8 SAMSUNG SEMICONDUCTOR 24 QUALITY and RELIABILITY RELIABILITY AND PREDICTION THEORY RELIABILITY Reliability can be loosely characterized as long term product quality. There are two types of reliability tests: those performed during design and development, and those carried out in production. The first type is usually performed on a limited sample, but for long periods or under very accelerated conditions to investigate wearout mechanisms and determine tolerances and limits in the design process. The second type of tests is performed periodically during production to check, maintain, and improve the assured quality and reliability levels. All reliability tests performed' by Samsung are under conditions more severe than those encountered in the field, and although accelerated, are chosen to simulate stresses that devices will be subjected to in actual operation. Care is taken to ensure that the failure modes and mechanisms are unchanged. FUNDAMENTALS 'A semiconductor device is very dependent on its conditions of use (e.g., junction temperature, ambient temperature, voltage, current, etc.). Therefore, to predict failure rates, accelerated reliability testing is generally used. In accelerated testing, special stress conditions are considered as parametrically related to actual failure modes. Actual operating life time is predicted using this method. Through accelerated stresses, component failure rates are ascertained in terms of how many devices (in percent) are expected to fail for every 10pD hours of operation. A typical failure rate versus time of activity graph is shown below (the so-called "bath tub curve") (t) Reduction due to Failure ...._......l. . ._ _ _ _ _-,:-_ _ _ _....",,_-,-_ _ preventive maintenance rate m 1 = S " .. ' Specified Failure Rate emlcond- - - oct (m:::: o.5_o%feVlces Initial Random Failure period Failure period Wear-Out Failure period Figure 3_ Failure Rate Curve ("Bath Tub Curve") During their initial time period, products are affected by "infant mortality," intrinsic to all semiconductor technologies. End users are ,very sensitive to this parameter, which causes early assembly/operation .failures in their own system. Perl~dically, Samsung reviews and publishes life time resultll. The goal is a steady shift of the limits as shown below. =~;:m \1'": J ---,Ir-/::,.-t-----/ I I I I !---t /::,.: failure rate --TIME Figure 4. Failure Rate c8 SAMSUNG SEMICONPUCTOR 25 QUALITY and RELIABILITY ACCELERATED HUMIDITY TESTS To evaluate the reliability of products assembled in plastic packages, Samsung performs accelerated humidity stressing, such as the Pressure Cooker, Test (PCT) and Wet High Temperature Operating Life Test (WHOPL). Figure 5 shows some results obtained with these tests, which illustrate the improvements in recent years. These 'improvements result mainly from the intro.Quction of purer molding reSins, new process methods, and improved cleanliness. 10- 5 -- ~ VI I R- -.10- 6 ~ 5 ff.~ ~ ~10- 7 :: fi: 1/:" t;0 ~ R: W f;j r,;,0" ." -lt'J "" ao 100 ILj "R:~ 10- 8 ~~' ~ '" [@ 'I. 'ff. rl 5 ~'S. 5 rl 10- ·I~ ,,'":1 5 • 25 40 ., ~ 60 125 150 1ao 1200 Til C) Figure 5. Improvement In Humidity Reliability ACCELERATED TEMPERATURE TESTS Accelerated temperature tests are carried out at temperatures ranging from 75°C to 200°C for up to 2000 hours. These tests allow Samsung to evaluate reliability rapidly and economically, as failure rates are strongly dependent on temperature. The validity of these tests is demonstrated by the good correlation betw~n data collected in the field and laboratory results obtained using the Arrhenius model. Figure 6 shows the relationship between failure rates and temperatures obtained with this model. 11eac ,, 99.9 ,99 90 1982 1985 ~ L If 1988 L V.....-: iI' 0,1 10 10' HOURS Figure 6. Failure Rate Versus Temperature c8 SAMSUNG SEMICONDUCTOR 26 QUALITY and RELIABILITY FUNDAMENTAL THEORY FOR ACCELERATED TESTING Accelerated life testing is powerful because of its strong relation to failure physics. The Arrhenius model, which is generally used for failure modelling, is explained below. 1. Arrhenius model This model can be applied to accelerated Operating Life Tests and uses absolute (Kelvin) temperatures. L = A + EalK·Tj L : Lifetime A : Constant Ea : Activation Energy K : Boltzman's constant Tj : Absolute Junction temperature If Lifetimes L1 and L2 correspond to Temperatures T1 and T2: L1 = L2 exp Ea 1 K (1'1 - 1 T2 ) Lifetime(L) Temperature 11T (OK-1) Actual junction temperature should always be used, and can be computed using the following relationship. Tj=Ta+(Px Bja) Where Tj = Junction temperature Ta = Ambient temperature , P = Actual power consumption Bja=Junction to Ambient thermal resistance (typica"y 100 degrees celsius/watt for a 16-Pin PDIP). 2. Activation Energy Estimate Clearly the choice of an appropriate activation energy, Ea, is of paramount importance. The different mechanisms which could lead to circuit failure are characterized by specific activation energies whose values are published in the literature, The Arrhenius equation describes the rate of many processes. responsible for the degradation and failure of electronic components. It follows that the transition of an item from an initially stable condition to a defined degraded state occurs by a thermally activated mechanism. The time for this transition is given by an equation of the form: MTBF = B EXP (EalKT) MTBF = Mean time between failures B = Temperature-independent constant MTBF can be defined as the time to suffer a device degradation. The dramatic effect of the choice of the Ea va!ue can be seen by plotting the MTBF equation. The acceleration effect for a 125°C device junction stress with respect to 70°C actual device junction operation is equal to 1000 for Ea=1eV and 7 for Ea=0.3eV. c8 SAMSUNG SEMICONDUCTOR 27 I . QUALITY and RELIABIUTY Some words of caution are needed about published values of Ea: A. They are often related to high-temp tests where a single Ea (with high value) mechanism has become dominant. B. They are specifically related to the devices produced by that supplier (and to Its technology) fo~ a given period of time .. C. They could be modified by the mutual action of other stresses (voltage, mechanical, etc.) D. Field device-application conditlon(s) should be considered. (Activation energy for each failure mode) THE CORRECT PROCEDURE Failure Mechanism Ea Contamination Polarization Aluminum Migration Trapping Oxide Breakdown Silicon Defects 1-1.4 eV 1 eV 0.5 -1 eV 1 eV 0.3 eV 0.3-0.5 eV . ACCELERATED TEST I CALCULATED AT TEST CONDITIONS AND WITH A CERiAiN CONFIDENCE LEVEL FAILURE ANALYSIS I CHOICE OF Ea---CALCULATED AT OTHER TEMPERATURES Time 1.4 e"r -leV 1()6 / 1()6 l; ~c 104 ~ ~ 1()3 0.8e~ / ./ ./ .O.5~ 0 "" -< 102 10' l()1l V J II . 250 '/ / ./ ./ ./ .... ~ 200 175 150125. 100 0.4 eY:lii!! 0.3eV- ", 75 50 T("C) Junction 1;emperature Figure 7. Life Hours c8 SAMSUNG SEMICONDUCTOR 28 QUALITY and RELIABILITY Failure Rate Prediction AccEllerated testing defines the failure rate of products. By derating the data at different conditions, the life expectancy at actual operating conditions can be predicted. In its simplest form the failure rate (at a given temperatlJre) is: N FR=1)H Where FR N =Failure Rate =Number of failures o = Number of components H = Number of testing hours If we intend to determine the FR at different temperatures, an acceleration factor must be considered. Some failure modes are accelerated via temperature stressing based upon the accelerations of the Arrhenius Law. For two different temperatures: FR (T1) = FR (T2) exp Ea 1 If ( T2 1 - T1 ) FR (T1) is a point estimate, but to evaluate this data for an interval estimate, we generally use a X2 (chi square) . distribution. An example follows: Failure Rate Elaluation Unit: %/1000HR Dev. x Hours at 125°C Fail 1.7x1OS 2 Failure Rate at 60% Confidence Level Point Estimate 0.18 I I 85·C 0.0068 I I 70·C 0.0018 I I 55·C 0.00036 The activation energy, from analYSis, was chosen as 1.0 eV based upon test results. The failure rate at the lower operating temperature can be extrapolated by an Arrhenius plot. . c8 SAMSUNG SEMICONDUCTOR 29 I QUALITY and RELIABILITY PROCESS CONTROL GENERAL PROCESS CONTROL . ' , . The general process flow in Samsung is shown in Figure 8. This illustration contains the standard process flow from incoming parts and materials to customer shipment. Acceptance inspection (according to acceptance inspection plan) Process quality control • Check of each condition by process quality control procedures • Process insPection • Lot control • Equipment calibration and maintenance 100% Electrical Die Sorting Process Quality Control and screening of infant mortality defects • Mechanical screen • Thermal shock • Burn·in 100% package sorting of electrical characteristics and marking Reliability monitoring 1. PRT (Process Reliability Testing) 2. DRT (Device Reliability Testing) • High Temperature Operating Life Test • Environmental test • Life Test Finished Goods Incoming Inspection Sampling Inspection • Dimensions • Visual • Electrical characteristics • Periodic calibration of measuring equipment Stock control • Age control Sampling Inspection (when applicable) Shipment Figure 8. General Process Flow CharI c8 SAMSUNG SEMICONDUCTOR 30 QUALITY and RELIABILITY WAFER FABRICATION Process Controls The Quality Control program utilizes the following methods of control to achieve its previously stated objectives: process audits, environmental monitors, process monitors, lot acceptance inspections, and process integrity audits. Definitions The essential method of the Quality Control Program is 'defined as follows: 1. Process Audit-Performed on all operations critical to product quality and reliability. 2_ Environmental Monitor-Monitors concerning the process environment, i.e., water purity, temperature, humidity, particle counts. 3. Process Monitor-Periodic inspection at designated process steps' for verification of manufacturing inspection and maintenance of process average. These inspections provide both attribute and variable data. 4. Lot Acceptance-Lot-by-Iot sampling. This sampling method is reserved for those operations deemed as critical, and require special attention. Environmental Monitor Spec_ Limit Control Item Process Clean Room • • • • 0.1. Water • Particle • Bacteria • Resistivity Temperature Humidity Particle Air Velocity • • • • Individual Individual Individual Individual Insp_ Frequency 24 24 24 24 Spec. Spec. Spec. Spec. • 5 ea/50ml (0.81') • 50 colonies/100m I (0.451') • Main (Line): More than 16 Mohm-cm • Using pOint: More than 14 Mohm-cm Hrs. Hrs. Hrs . Hrs. 24 Hrs. Weekly 24 Hrs. 24 Hrs. • Instruments • FMS (Facility Monitoring System) HIAc/ROYCO • CPM (Central Particle Monitoring System-Dan Scientific) • Liquid Dust Counter Etch Rate • Filtration System for Bacterial check • Air Particle counter • Air Velocity meter Process Monitor Photo • • • • • • Etch • Etchant Temp. • Etch Rate • Spin Dry~r N2 Flow RPM • Hard Bake Temp .. N2 Flow c8 Spec_ Limit Control Item Process Aligner N2 Flow Rate Aligner Vacuum Aligner Air Aligner Pressure Aligner Intensity Coater Soft Bake Temperature Vacuum SAMSUNG SEMICONDUCTOR Insp_ Frequency • • • • • • • • Individual Individual Individual Individual Individual Individual Individual Individual Spec. Spec. Spec. Spec . Spec. Spec. Spec. Spec. Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift • • • • • • Individual Individual Individual Individual Individual Individual Spec. Spec. Spec. Spec. Spec. Spec. Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift Once/Shift 31 I QUALITY and RELIABILITY Process Monitor (Continued) Control Item Spec. Limit Insp. Frequency Thin Film • Cooling Water Temp. • .Thickness ·26±3°C ., Individual Spec. Once/Shift Once/Shift CVD • Pin Hole • Thickness • Individual Spec. • Individual Spec. Once/Shift Once/Shift Diffusion • Tube Temp. • C·V Plot Run Tube • Sheet Resistance • Thickness • • • • • Once/Shift Once/Shift Oncel1Odays Once/Shift Once/Shift Process Individual Individual Individual Individual Individual Spec. Spec. Spec. Spec. Spec. Raw Material Incoming Inspection 1. Mask Inspection , Defect Detection Registration Critical Dimension • Pinhole & Clear-extension • Opaque Projections & SpOtS • Scratch/Particle/Stain • Substrate Crack/Glass·chip • Others • Run·out (X-Y Coordinate) • Orthogonality • Drop-in Accuracy • Die Fit/Rotation • Critical Dimension All Masks .' • Defect Size::s;1.5,.m • Defect Density ::s;O.124EA1cm 2 ±O.75,.m 20% '. All New Masks AI,I Masks ±O.75,.m ±O.50,.m' ±O.50,.m Purchasing Spec. • Instrument • Auto mask Inspection system for defect-detection (NJS 5MD-44) • Comparator for registration (MVG 7X7) • Automatic IInewidth measuring system for CD (MPV-CD) 2. Wafer Inspection Purpose Insp. Items Sample Structural • Crystal'lographic; Defect All Lots • Sirtl Etch Electrical • Resistivity • Conductivity All Lots • Monitor Water Dimensional • • • • Thickness Diameter Orientation Flatness All Lots TTV, NTV, Epi-thickness Visual • Surface Quality • Cleanliness Remarlts TIR (FPD) Local Slope All Lots Purchasing Spec. • Instrument, • 4 point probe for resistivity (Kokusai VR40A, Tencor sonogage, ASM 4FPP) • Flatness measuring system (Siltec) • Epi. layer thickness gauge (Digilab FTG-12, Qualimatic S-1OO) • Automatic Surface Insp. System (Aeronca Wis-150) • Non-contact thickness gauge (ADE6034) , c8 SAMSUNG SEMICONDUCTOR 32 QUALITY and RELIABILITY In·Process Quality Inspection (FAB) 1. Manufacturing Section Process Step Frequency Process Control Insp. Oxidation Oxide Thickness All Lots Diffusion Oxide Thickness Sheet Resistance Visual All Lots All Lots All Lots Photo Critical Dimension Visual Mask Clean Inspection All Lots (MaS) All Lots All Masks with Spot Light (MaS) or Microscope (BIP) Etch Critical Dimension Visual All Lots All Wafers Thin Film Metal Thickness Visual All Lots All Lots Ion Implant Sheet Resistance All Lots (Test Wafer) Low Temp. Oxide Thickness All Lots Visual All Lots E·Test Electrical Fab. Out Visual ~haracteristics All Lots All Wafers 2. FAB, QC Monitor/Gate Process Step FAB, QC Insp. Frequency Oxidation Oxide Thickness C·V Test on Tubes Visual Once/Shift Once/10 Days and After CLN Once/Shift Diffusion Oxide Thickness C·V Test on Tubes Visual Once/Shift Once/10 Days and After CLN Once/Shift Photo Critical Dimension Visual Mask CLN Inspection All Lots (MaS) Once/Shift All Masks After 10 Times Use Etch Critical Dimension Visual All Lots (MaS) All Lots Thin Film C·V Test on Tubes on Lots Reflectivity Once/10 Days and After CLN Once/Shift Once/Shift Low Temp. Oxide Refractive Index, Wt% of Phosphorus Visual 1 Test Wafer/Lot 1 Test Wafer/Lot 1 Test Wafer/Lot E·Test Measuring Data All Lots Calibration Instrument for Thickness and C.D. Measuring Once/week c8.SAMSUNG SEMICONDUCTOR 33 .QUALITY and RELIABILITY 3. Photo/Etch process quality control Process Flow Process Step ac Monitor/Gate Prebake Oven PM, Temperature Time Photo Resist {PRJ -spin Thickness Machine PM Soft Bake Oven PM, Temperature Time Temp. N2 Flow Rate Align/Expose Light Uniformity Alignment, Focus Test Mask Clean Inspection Mask Clean Exposure Light Intensity Ught Intensity Mask Clean Insp. Develop . MFG. Control Item . Equipment PM Solution Control Develop Check Oven Particle Temp. N2 Flow Rate Vacuum PRIC.D.'S Alignment Particles Mask and Resist Defects QC Inspection Critical Dimension (CD) Hard Bake Oven PM, Temperature Time Temp. N2 Flow Rate Etch Etch rate, Equipment PM & Settings, Etch Time to Clear Etchant Temp. Etch Rate Inspection Over/Under PR Strip Machine·PM Final Check C.D.'S Over and under Etch, Particles; PR Residue, Defects, Scratches QC Inspection Same as Final Check, However, More Intense on limited Sample Basis. (AQL 6.5%) Note: PM represents Preventive Maintenance 4. Reliability·related Interlayer Dielectric, Metallization, and Passivation Process Quality Control Monitor Item Wt% Phosphorus Content of the Dielectric Glass 1/Shift Metallization Interconnect 1/Month AI Step Coverage 1/Month Metallization Reflectivity c8 Frequency 1/Shift Passivation Thickness and Composition 1/Shift Thin Film Defect Density 1/Shift SAMSUNG SEMICONDUCTOR 34 QUALITY and RELIABILITY Figure 9. General Wafer Fabrication Flow Process Step Process Flow Major Control Item I Wafer and Mask Input Starting Material Incoming Inspection Mask: (See mask Inspection) Wafer: (See wafer Inspection) Wafer Sorting and Labelling· Resistivity Initial Oxidation Oxide Thickness Photo • (See manufacturing section) • (See FAB, QC Monitor/gate) Inspection • Critical Dimension • Visual/Mech - Major: AQL 1.0% - Minor: AQL 6.5% QC Gate • Critical Dimension Etch • (See manufacturing section) • (See FAB, QC Monitor/gate) Inspection • Critical Dimension • Visual/Mech - Major: AQL 1.0% - Minor: AQL 6.5% QC.Gate • Critical Dimension • Visual/Mech Diffusion Metalizatlon • (See in·process Quality Inspection) E·test • Electrical Characteristics Diff'n Metal 9 ciS SAMSUNG SEMICONDUCTOR 35 QUALITY and RELIABILITY Figure 9. General Wafer Fabrication Flow (Continued) Process Flow <> / Process Step Major Control Item OC Gate • Electrical Characteristics Back-Lap • Thickness Back Side Evaporation • Thickness, Time Evaporation Rate Final Inspection • All Wafers Screened (Visual/Mech) OC Fab. Final Gate • Visual/Mech. - Major: AOL 1.0% - Minor: AOL 6.5% ' EDS (Electrical Die Sorting) OC Gate • Function Monitor Sawing " Inspection • Chip Screen OC Final Inspection • • • • AOL 1.0% Fab. Defect Test Defect Sawing Defect Die Attach c8 SAMSUNG SEMICONDUCTOR 36 QUALITY and RELIABILITY ASSEMBLY The process control and inspection points of the assembly operation are explained and listed below: 1. Die Inspection: Following 100% inspection by manufacturing, in-process Quality Control samples each lot according to internal or customer specifications and standards. 2. Die Attach Inspection: Visual inspection of samples is done periodically on a machine/operator basis. Die Attach techniques are monitored and temperatures are verified. 3. Die Shear Strength: Following Die Attach, Die Shear Strength testing is performed periodically on a machine/operator basis. Either manual or automatic die attach is used. DIE ADHESIVE THICKNESS MONITOR RESULTS. (JEOL SEM, JSM IC845) 4. Wire Bond Inspection: Visual inspection of samples is complemented by a wire pull test done periodically during each shift. These checks are also done on a machine/operator basis and XR data is maintained. 5. Pre-SeaIfPre-Encapsulation Inspection: Following 100% inspection of each lot, samples are taken on a lot acceptance basis and are inspected according to internal or customer criteria. WIRE LOOP MONITOR RESULTS. ciS SAMSUNG SEMICONDUCTOR CROSS SECTION INSPECTION FOR BALL BOND. 37 I QUALITY and RELIABILITY 6. Seal Inspection: Periodic monitoring of the sealing operation checks the critical temperature profile of the sealing oven for both glass and metal seals.· 7. Post·Seal Inspection: Subsequent to a 100% visual inspection, In-Process Quality Control samples each for conformance to visual criteria. ' X-RAY MONITOR RESULT.'tPHILIPS MG161) 8. General Assembly Flow is shown in Figure 11. Sampling Plans 1. Sampling plans are based on an AQL (Acceptable Quality Level) c,oncept and are determined by internal or by customer specifications. 2. Raw Material Incoming Inspection. (continued) Material \ Inspection liem Lead Frame 1) 2) 3) 4) Wafer 1) Visual Inspection AQL 0.65% 1) Visual Inspection 2) Bond Pull Strength Test 3) Bondability Test n:5, C=O n: 13, C=O Critical Defect: 0.65% Major Defect: 1.0% Minor Defect: 1.5% n: 5, C=O AulAI Wire Vjs,ual Inspection Dimension Inspection Function Test Work Test \ 4) Chemical Composition Analysis 1) Visual Inspection. ,2) Moldability Test Molding Compound 3) Chemical Composition Analysis c8 Acceptable Quality Level SAMSUNG SEMICONDUCTOR LTPD LTPD LTPD LTPD 10%, 20%, 20%, 20%, C=2 C=O C=O C=O , n: 5, C=O Critical Defect: 0.15% Major Defect: 1.0% Minor Defect: 1.5% n: 5, C=O 38 QUALITY and RELIABILITY I MOLDING COMPOUND INCOMING INSPECTION (THERMAL ANALYSER, DUPONT 9900) (Continued) Material Inspection Item Visual Inspection Dimension Inspection Electro-Static Inspection Hardness Test Packing Tube & Pin 1) 2) 3) 4) Solder 1) Visual Inspection 2) Weight Inspection 3) Chemical Composition Analysis LTPD 20% C=O LTPD 20% C=O LTPD 20% C=O Flux 1) Acidity Test 2) Specific Gravity Test 3) Chemical Composition AnalYSis LTPD 20% C=O LTPD 20% C=O LTPD 20% C='U Solder Preform 1) Visual Inspection 2) Work Test 3) Chemical Composition Analysis' AOL 1.0% AOL 1.0% AOL 1.0% Coating Resin 1) Visual Inspection 2) Work Test 3) Chemical Composition Analysis AOL 1.0% AOL 1.0% AOL 1.0% 1) Work Test 2) Mark Permanencx Test Critical Defect: 0.15% Major Defect: 1.0% Minor Defect: 1.5% n: 5, C=O Chip Carrier 1) 2) 3) 4) Visual Inspection Dimension Inspection Electro-Static Inspection Hardness Test LTPD 15% C=2 LTPD 15% C=O n: 5, C=O n: 5, C=O Vinyl Pack 1) Visual Inspection 2) Work Test 3) Electro-Static Inspection LTPD 20% C=O LTPD 20% C;=O LTPD 15% C=O Ag Epoxy 1) Work Test 2) Chemical Composition Analysis n:8, C=·O n:8, C=O Letter Marking 1) Visual Inspection 2) Work Test Spare Parts & Others 1) Dimension Inspection 2) Visual Inspection Marking Ink .. c8 Acceptable Quality Level SAMSUNG SEMICONDUCTOR LTPD 15%, C=2 LTPD 15% C=2 n: 5, C=O n: 5, C=O n:5, C=O n:5, C=O 39 QUALITY and RELIABILITY 3. In·Process Quality Inspection' A. Assembly Lot Acceptance Inspection (1) Acceptance quality level for wire bond gate inspection Defect Class Inspection level Critical Defect AQL 0.65% Major Defect AQL 1.0% Minor Defect AQL 1.5% Type 01 Defect - Missing Metal - Chip Crack ' - No Probe - Epoxy on Die - Mixed Device - Wrong Bond - Missing Bond - Diffusion Defect Ink Die Exposed Contact Bond Short Die Lift Broken Wire - Metal Missing Metal Adhesion Pad Metal Discolored Tilted Die Die Orientation Partial Bond - Oxide Defect Probe Damage Metal Corrosion Incomplete Wetting Weakened Wire - Adjacent Die Passivation Glass Die Attach Defect Wire Loop Height Extra Wire - Contamination Ball Size Wire Clearance Bond Deformation (2) Acceptance quality level for Mold/Trim gate inspection Defect Class Inspection Level Kind of Delect Critical Defect AQL 0.15% - Incomplete Mold Void, Broken Package Misalignment - Deformatior) No Plating Broken Lead Major Defect AQL 0.4% - Ejector Pin Defect Package Burr Flash on Lead - Crack, Lead Burr Rough Surface Squashed Lead, Lead Contamination Poor Plating Package Contamination Bent Lead AQL 0.65% - - Minor Defect B. In·process monitor inspection Inspection Item Frequency ReJerence • Die Shear Test • Bond Strength Test • Solderability Test .' Mark Permanency Test • Lead Integrity Test • In·Process Monitor Inspection for Product • X·Ray Monitor Inspection for Molding • Monitor Inspection for Production Equipment Each Lot Each Lot Weekly Weekly Weekly 4 Times/Shift/Each Process' MIL·STD·883C, 2019·2 MIL·STD·883C, 20114 MIL·STD·883C, 2003·3 MIL·STD·883C, 2015·4 MIL·STD·883C, 2004·4 Identify for Each -ontrol Limit 2 Times/Shift/Mold Press Identify for Each Control Limit 2 Times/Shift/Each Unit of Equipment Identify for Each Control Limit cIS SAMSUNG ~EMICONDUCTOR 40 QUALITY and RELIABILITY 4. Outgoing quality inspection plan (LTPD) Defect Class Critical Defect electrical visual Major Minor c8 Discrete LSI Kind of Defect 1% 2% Open, short Wrong configuration, no marking Defect electrical visual 1.5% 3% Items which affect reliability most strongly Defect electrical visual 2% 5% Items which minimally or do not affect rei iabil ity at all (cosmetic, appearance, etc.) SAMSUNG SEMICONDUCTOR I 41 QUALITY and RELIABILITY Figure 10. \leneral Assembly Flow Process· Flow Process Step Major Control Item Wafer Wafer Incoming Inspection Q.C. Wafer Incoming Inspection AQL 4_0% Tape Mount Sawing Q.C. Monitor Q.C. Monitoring: - Chip-out - Crack - Sawing-speed - 0.1. Purity - Visual Inspection 100% Screen: - FAB Defect - EDS Test Defect - Sawing & Scratch Defect Q.C. Gate 1st AQL 1.0% Reinspection AQL: 0.65% Scratch Sawing Discoloration Cut Count CO2 Bubble Purity Lead Frame (UF) Lead Frame Incoming R> ~l c8 *Q.C.UF Incoming Inspection 1. Acceptance Quality Level - Dimension LTPD 20%, C=O - Visual & Mechanical: LTPD 10%, C=2 - Functional Work Test: LTPD 10%, (:;=2 Die Attach (D/A) Q.C. Monitor *Q.C.D/A Monitor Inspection 1. Bond force 2. Frequency: 4 Times/Station/Shift 3. Sample: 24 ea Time 4. Acceptance Criteria Defect Acceptance Critical 0 Reject 1 Major 1 2 Cure SAMSUNG SEMICONDUCTOR 42 QUALITY and RELIABILITY . Figure 10. General Assembly Flow (Continued) Process Flow Process Slep Q.C. Monitor <> Major Conlrol Ilem I 'Q.C. Cure Monitor Inspection 1. Control Item - Temperature - In/out Time 2. Frequency - 1 Time/Shift Au Wire Bonding Wire Incoming Inspection r 'Q.C Au Wire Incoming Inspection 1. Visual Inspection: N 5, C = 0 2. Bond Pull Test Strength Test: N = 13, C = 0 3. Bondability Test - Critical Defect: AQL 0.65% - Major Defect: AQL 1.0% - Minor Defect: AQL 1.5% = Wire Bonding (W/B) 100% Visual Inspection Q.C. Monitor 'Q.C. W/B Monitor Inspection 1. Frequency: 6 Times/Mach/Shift .Q.C. Gate 1. Q.C. Acceptance Quality Level - Critical Defect: AQL 0.65% - Major Defect: AQL 1.0% - Minor Defect: AQL 1.5% Mold Compound Incoming Inspection Mold 'Moldability Test - Critical Defect: AQL 0.15% - Major Defect: AQL 1.0% - Minor Defect: AQL 1.5% Mold Q.C. Monitor c8 SAMSUNG SEMICONDUCTOR 'Q.C. Mold Monitor Inspection 1. In·Process Monitor Inspection - Frequncy: 4 Times/Station/Shift - Sample: 200 UnitslTime 2. Acceptance Quality Level - Critical Defect: AQL 0.25% - Major Defect: AQL 0.4% 43 QUALITY and RELIABILITY Figure 10. General Assembly Flow (Continued) Process Flow n 6 6 }- Process Step Major. Control Item Cure a.c. Monitor 'a.c. Cure Monitor Inspection 1. Control Item - Temperature - In/out Time 2. Frequency - 1 Time/shift Deflash a.c. Monitor 'a.c. Deflash Monitor Inspection 1. Control Item '- Pressure - Belt Speed ~ Visu"aliMechanical Inspection 2. Frequency: 4 Times/Mach/Shift 3. Identify each Defect Control Limit TRIM/BEND a.c. Monitor 'a.c. Trim/Bend Monitor Inspection 1. Visual Inspection 2. Frequency: 4 Times/Station/Shift Solder 100% Visual Inspection a.c. Monitor 'a.c. Solder Monitor Inspection 1. Frequency: 4 Times/Mach/Shift 2. Criteria - Critical Defect: AaL 0.65% - Major Defect: AaL 1.0% a.c. Gate 'a.c. Mold Gate - Acceptance Criteria Critical Defect: AaL 0.15% Major Defect: AaL 0.4% Minor Defect: AaL 0.65% Test 100% Electrical Test a.c. Monitor Correlation Sample Reading for Initial Device Test Mark 100% Visual Inspection I "91 c8 SAMS~NG SEMICONDUCTOR 44 QUALITY and RELIABILITY Figure 10. General Assembly Flow (Continued) Process Flow 0 0 Process Step PRT Monitoring (Process Reliability Testing) 1. PRT - HOPL (168 HRS), PCT (48 HRS) - Other (when applicable) 2. Acceptance Criteria: LTPD 10% Q.C. Monitor "Q.C. Marking Monitor Inspection - Frequency: 4 Times/Station/Shift - Sample: 24 UnitslTime - Identify for Each C.L. - Acceptance Criteria I I 0 I I Major Control Item Defect Acceptance Critical 0 1 Major 1 2 Q.C. Gate "Q.C. Final Acceptance Level - Critical Defect: AQL 0.15% - Major Defect: AQL 0.4% - Minor Defect: AQL 0.65% Q.A. Gate "Q.C. Incoming Inspection 1. Critical Defect: - Electrical Test: LTPD - Visual Test: LTPD 2. Major Defect: - Electrical Test: LTPD - Visual Test: LTPD 3. Minor Defect: - Electrical Test: LTPD - Visual Test: LTPD Reject 2% (N=116; C=O) 2% (N=116, C=O) 3% (N = 116, C = 1) 3% (N=116, C=1) 5% (N=116, C=2) 5% (N=116, C=2) Stock "Age Control Q.A. Gate "Q.A. Outgoing Inspection 1. Quantity 2. Customer 3. Packing 4. Sampling Inspection (when applicable) . - Sampling plan is same as incoming Inspection . Shipment c8 SAMSUNG SEMICONDUCTOR 45 QUALITY and RELIABILITY· SST's BEST PROGRAM The SST Best Program has been designed to offer the customer an alternative to standard off-the-shelf plastic encapsulated LINEAR circuits. The Best Program will significantly reduce incoming inspection requirements as well as early device failures (infant mortalify). These results are achieved by a tightened AQL inspection plan and a burn-in of each unit for 160 + 8, - 0 hours at 125°C or equivalent conditions established from a time/temperature regression curve. The AQL Plan. Acceptable Quality Levels (AQL) are a measure of the ql\ality of outgoing LINEAR circuits. These levels are established by the manufacturer to show the process percent defective being produced and to ensure that the customer is receiving material tl:1at meets his requirements. The SST Best Program has tightened these AQL levels to a point at which incoming inspection by the customer is no longer a necessity. Best product quality is monitored significantly more closely than standard product; those lots which fall the AQL level are 100% reworked before resubmission to the AQL gate. The Reliability Plan. Reliability is the statistical probability that a product will give satisfactory performance for a specified period of time when used under specified conditions. A typical rate curve is shown below: INFANT MORTALITY w ~ w a: ::::I ...J RANDOM FAILURES AT A LOW CONSTANT FAILURE RATE ~ I I o I BURNINI PERIOD I - OPERATING L l F E - - - - Reliability theory assumes that devices fail according to the above curve. When a group of devices is manufac· tured a small portion of the units will be inherently weaker than the average. These weak units will probably fail during the first few hours of operation-hence the term "infant mortali!y." If the units are burned-in however, thereby allowing the weak units to fail, there is a much lower probability that those finally put into system use will fail. The SST Best Row. in order to achieve an extremely high quality unit and reduce infant mortality failures the following flow has been established: c8 SAMSUNG SEMICONDUCTOR 46 QUALITY and RELIABILITY Process Flow FLOW CHART I I I I 1 . 1 I I I I § c8 II DESCRIPTION I I WAFER FABRICATION LINEAR PROCESS CV PLOTS OXIDE THICKNESS MEASUREMENTS OPTICAL INSPECTIONS SEM ANALYSIS ENCAPSULATION MOLDING COMPOUND ULTRA PURE FOR LINEAR APPLICATIONS POST MOLD BAKE 6 HOURS AT 175 DEG. C . CURES PLASTIC STRESSES ALL WIRE BONDS AND DIE O/S FUNCTIONAL ELECTRICAL 100% TESTING OPENS/SHORTS AND INTERMITTENTS REMOVE HIGH TEMPERATURE BURN-IN 160 HOURS AT 125 DEG. C. OR EQUIVALENT CONDITIONS ESTABLISHED FROM A TIME/ TEMPERATURE REGRESSION CURVE. 0.96 eV FULL FUNCTIONAL AND PARAMETRIC ELECTRICAL TESTING 100% ELECTRICAL TESTING AC, DC 88 DEG. C. TIGHT AQL SAMPLING PLAN ELECTRICAL-0.05% AQL AT 88 DEG. C. MECHANICAL-O.o1% AQL CRITICAL & MAJOR SHIP UNITS SAMSUNG SEMICONDU~R 47 NOTE LINEAR ICs FUNCTION GUIDE 1. TELECOMMUNICATION APPLICATION Application Tone Ringer Tone Ringer with Bridge Type KA241 0 KA2411 tKA2418 Package 8 DIP 8 DIP Rectifier KS5808 PULSE Dialer DTMF/Pulse Switchable Dialer KS5805A/B Protect against over voltage Low current consumption Allow the parallel operation of 4 devices Built-in hysteresis External components are minimized High output voltage Included bridge diode 16 DIP 16 DIP Wide operating line voltage and current range Short start 'up time External components are minimized Internal protection of all inputs 18 DIP KS5805A: Pin 2; Vref KS5805B: Pin 2; Tone output RC oscillator used as frequency reference Pulse output: "0" true, Mute output: "0" true tKS58A/B/C/D19 22 DIP tKS58A/B20 18 DIP ttKS58A1B/CID21 Adjustable warbling and 2 frequency tone External triggering or ringer disable (KA2410) Adjustable supply initiating current (KA2411) Built-in hysteresis Direct telephone line operation Standard 2 of 8 key board use Tone output: Bipolar output Mute output: N-CH open drain DTMF Dialer tKA2413 Circuit Function 22 DIP Tone/pulse switchable dialing, touch key or slide switch 32 digit redialing & PABX auto pause time Make/break ratio pin selectable KS5821 (Telephone lock function) t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 51 LINEAR ICs FUNCTION GUIDE TELECOMMUNICATION APPLICATION Application DTMF/Pulse Switchable with 10 No. Memory Speech Network Low Voltage Speech Network with Dialer Interface Tone, Decoder Type Package Circuit Function 18 DIP 10 No. x 18 digit memory including a redial memory Including PABX auto pause time 10 pps/20 pps pin selectable Make/break ratio: 40%/60% 14 Dip Transmit/Receiver amplifier Side tone control On chip regulator tKA2425A/B 18 DIP Low Voltage Operation (1.5V) Tx, Rx & side tone gain set by external resistors Loop length equalization for Tx, Rx & sidetone Provides regulated voltage for CMOS dialer DTMF level adjustable with a singre resistor A: Mute active low B: Mute active high LM567C/L 8 DIP 8 SOP Touch tone decoding Sequential tone decoding Commu"nication paging' High stable center frequency LM567L: Micropower (4mW at 5V) dissipation 16 DIP 16 SOP Small current dissipation (Typ. 3.5mA: Vee 4.0V) Excellent input sensitivity Minimum number of external parts required Used to cordless telephone parts required Work from 1.8V to 7.0V ttKS5823 KA2412A " FM IF Amplifier (Continued) MC3361 , w255 companding law wLaw Codec Codec Filter wLaw Combo Codec tKT5116J 16 DIP tKT3040J 16 DIP ttKT3054J 16 DIP ttKT3064J 20 DIP ± 5V operation Synchronous or Asynchronous'operation On-chip sample and hold. Exceeds' all D3/D4 and CCITT spec. ± 5V operation Law power consumption 20dB gain adjust range Sin X/X correction in receive filter TTL and CMOS compatible logic Exceeds all 03/04 and CCITT spec. Complete CODEC and filtering system including ± 5V operation Low power consumption TTL and CMOS compatible logic Receive push-pull power amp (KT3064) t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 52 LINEAR ICs FUNCTION GUIDE TELECOMMUNICATION APPLICATION Application Line Driver Li ne Receiver Fluorescent Display Driver 8-Channel Source Driver Universial Asynchronous Receiver and Transmitter (UART) Type MC1488 MC1489/A (Continued) Package Circuit Function 14 DIP 14 SOP Conformance EIA standard No. RS-232C & V28 (CCITI) Quad line driver Interface between data terminal equipment (DTE) and data communication equipment (DCE) Current limited output: ± 10mA typo Power-off source impedance 300 ohms min. Compatible with DTL and TTL, HCTLS families Flexible operating supply range 14 DIP 14 SOP Conformance EIA standard No. RS-232C & V-28 (CCITI) Quad line receiver Interface between data terminal equipment (DTE) and data communication equipment (DCE) Input signal range ± 30 volts Input threshold hysteresis built in Response control a) Logic threshold shifting b) Input noise filtering 18 DIP Consisting of 8 NPN darlington output stages and associated common-emitter input stages Digit or segment drivers Low input current, internal output pull-down resistors High output breakdown voltage Single or split supply operation KA2580A 18 DIP TTL, CMOS, PMOS, NMOS compatible High output current ratings Internal transient suppression Efficient input/output pin structure Low voltage LEDs and incandescent lamp KA2588A 20 DIP ttKA2651 ttKS5824 tKS5812 24 DIP 4n DIP KA2588A: Separated logic and driver supply line The data formatting and control to interface serial asynchromous data communications between main system and subsystems. Low power, high speed CMOS process Serial/parallel conversi?n of data 8 and 9 bit transmission Programmable control register Optional .,. 1, .,. 16, and .,. 64 clock modes Peripheral/modem control functions Double buffered Included 4 UART in one chip (KS5812) t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 53 LINEAR ICs FUNCTION GUIDE 2. VOLTAGE REGULATOR A. 3-Tenninal Fixed Positive Voltage Regulator - Type Function High output. MC78XX Current series (lo =1A) Medium· output current (/s=500mA) MC78MXXC AC Series Low Output Current (l o =100mA) 3A Output Current MC78LXXAC series tKA78TXX Series 3A, 5V Positive Regulator B. 3~Tenninal Function High output Current (/0=1A) LM323 Package Application Features TO-220 Maximum output current 1A 5V, 6V, 8V, 8.5V, 9V, 10V External components are minimized 11V, 12V, 15V, 18V Internal protection circuit fo~ output short and 24V fixed output voltage Positive voltage regulator Variable application control TO-220 5", 6V, 8V, 10V, Maximum output current 500mA Extemal c.omponen-ts are minimized 12V, 15V, 18V Internal protection circuit for output short and 24V fixed _POSitive voltage ;egulator output voltage Variable application circuit TO-92 Output current in excess of 100mA External componerit minimized Internal protection circuit for output short . Positive voltage .regulator Variable application circuit TO-220 Maximum output. current 3A 5V, 6V, 8V, 12V No external components required 15V, 18V, 24VInternal protection circuit for output short fixed output Power dissipation: 25W voltage TO-39 Maximum output current 3A Intemal current and thermal limiting. Positive voltage regulator 2.6V, 5V, 6.2V; 8V, 8.2V, 9V, 12V, 15V, 18V arid 24V fixed output voltage 5V Fixed Negative Voltage Regulator Type MC79XXC series Package Application Features TO-220 TO:220 Oiltput't:urrent in excess of 500mA Internal overload protection Internal short circuit current limiting -2V, -5V, -6V, -8V, -10V, -12V, -15V, -18V and 24V fixed output voltage - TO-92 Output current In excess of 100mA Internal short circuit current limiting External component minimized -5V, -12V, -15V, -18V and - 24V fixed output voltage , Medium Output Current (10 = 500mA) MC79MXXC Series Low Output ttMC79LXXAC Current (/0=100mA) -2V, -5V, -6V, -8V, -10V, -12V, -15V, -18V, and -24V, fixed output voltage Output current in excess of 1A . Internal thermal overload protection Internal short circuit current limiting - t New Product . tt Under Development c8 SAMSUNG SEMICONDUCTOR: ~4 LINEAR ICs FUNCTION GUIDE C. Precision Voltage Regulator Function Type Package Application Features Precision Regulator LM723 14 DIP Positive or negative supply operation Output voltage Series, shunt, switching or floating adiustable operation from 2 to 37V 0.01 % line and load regulation Output current to 150mA without external pass transistor 33V Regulator KA33V ITO-92 Low temperature coefficient Low dymic resistance Electronic tuning system Output current in excess of 1.5A Output adjustable from 1.2V to 37V Internal short circuit current limiting Floating operation for high voltage operation Eliminates stocking many fixed voltage ttLM317 Adjustable Regulator ttKA337 ttKA350 TO-220 TO-220 TO-3P , Adjustable 3-terminal negative vqltage regulator Line regulation typically 0.01 %/V Load regulation typically 0.3% Internal thermal overload protection 1.5A output current Output voltage adjustable from -1.2V to -37V Adjustable 3-terminal positive voltage regulator 3A output current Guaranteed, thermal regulation Output voltage adjustable from 1.2V to 25V I D. Switching Voltage Regulator Function Type Package Adjustable 1.25V'to 40V KA78S40 16 DIP tt16 SOP PWM 100KHz tKA3524 16 DIP Features Peak output current of 1.5A without ex~ernal transistor BOdB line and load regulation , Operation from 2.5V to 40V PWM power control circuitry Frequency adjustable to greater than 100KHz Total supply current is less than 10mA Single ended or push·pull output Application Step-down converter Step-up converter Inverter Switching regulator Trans DC-DC converter Inverting v~ltage regulator . 3 PRECISION VOLTAGE REFERENCE Function Type Package ' Features Programmable output voltage from Vref to 36V Voltage reference tolerance: ± 1.0% Low output noise voltage Switching regulator Constant current source Constant current sink Application' Adjustable Reference KA431 TO-92 t8 DIP t8 SOP, 5V Reference tKA336 TO-92 Adjustable 4V to 6V Low temperature coefficient 0.60 dynamic impedance Fast Turn-on Adjustable shunt regulator Precision power regulator 1.235V Reference KA385 TO·92 Low temperature coefficient operating current of 10ILA to 20mA 10 dynamic impedance Micropower reference c8 SAMSUNG SEMICONDUCTOR 5,5 LINEAR ICs FUNCTION GUIDE 4. OPERATIONAL AMPLIFIER Function Type • Comparator, DC amp, Multivibrator, 'Summing amp, Integrator or differentiator Narrow band or BPF 8 DIP 8 SOP Slew·rate of 10V/p,s as a summing amplifier External frequency compensation Variable capacitance Multiplier Sine wave oscillator ttKF351 8 DIP 8 SOP JFET input Low input bias current High slew rate 13V/p,s Wide gain bandwidth High speed intergrators Fast D/A converters Sample arid hold c1rcuits KA733 14 DIP 14 SOP 120MHz band width Selectable gains of 10, 100, 400 No frequency compansation Disk file memories Magnetic tape systems Wide band video amplifiers MC4558 MC1458 8 DIP 8 SOP Internal frequency compensation Low noise operation Phone pre-amplifier Tape playback amplifier Schmitt trigger, OPAMP LM358/A LM258/A LM2904 tKA9256 Quad OPAMP t tt Application Internal frequency compensation Short circuit protection KA301A Dual OPAMP Features 8 DIP 8 SOP LM741 r· Package 8 DIP t8 SOP Internal frequency compensation for unit gain Large DC voltage gain Wide power supply range Internal current limiting: Isc = 350mA . 10 SIP HIS Internal frequency compensation Minimal cross over distortion' DC summing amplifier Power amplification RC active bandpass filter Compatible with all forms of logic High power amplifier CD driver LM324/A LM224/A LM2902 14 DIP. 14 SOP Internal frequency compensation Wide supply voltage range Single supply: DC 3V - 30V Dual .supply: DC ± 1.5V - ± 15V Audio power booster DC amp, Multivibrator Switch, Comparator Schmitt trigger LM348 LM248 14 DIP 14 SOP Each amplifier is functionally equivalent to the LM741 Pin compatible with LM324 Short circuit protection Comparator with hysteresis Voltage reference MC3403 tMC3303 14 DIP 14 SOP Class AB output stage for minimal crossover distortion Single or split supply operation Internal frequency compensation Comparator with hysteresis Bi-Quad filter New Product Under Development c8 SAMSUNG SEMICONDUCTOR 56 FUNCTION GUIDE LINEAR ICs 5. VOLTAGE COMPARATOR Function Type ILM311 tLM211 Single Comparator ttKA361 ttKA261 KA710C Dual Comparato"r LM393/A LM2903 LM293 KA319 KA219 Quad Comparator LM339/A LM2901 LM239 LM3302 Package Features Application 8 DIP t8 SOP Operates from single 5V supply Maximum input current: 250nA Maximum offset current: 50nA Differential input voltage range: ± 30V Power consumption: 135mW at + 15V Multivibrator output is compatible with DTL and as well as MOS circuits voltage controlled oscillator 14 DIP independent strobes Guaranteed high speed: 20nS max. Complementary TTL outputs High speed analog to digital converter Zero-crossi ng detectors Low offset and thermal drift Compatible with practically all types of integrated logic Interface between logic types Level detector with lamp 14 DIP t14 SOP 8 DIP 8 SOP 14 DIP t14 SOP 14 DIP 14 SOP High precision comparators Reduced Vos drift over temperature Eliminates need for dual supply Allows sensing near ground Compatible with all forms of logic Power drain suitable for battery operation Low input biasing current: 25nA Low output saturation voltage 250mV at 4mA Output voltage compatible with TTL, DTL, ECL and CMOS logic system Basic comparator Pulse generator MOS clock driver Two indepentent comparators Operates from a single 5V High common mode slew rate Relay driver Window detector Wide single supply voltage range or dual supplies Very low supply current drain (0.8mA)-independent of supply voltage (2mW/Comparator at + 5V DC) Low input biasing current: 25nA Input common-mode voltage range includes GND Low output saturation volti!lge 250mV at 4mA Compatible with all forms of logic Bi-stable multivibrator One-shot multivibrator Time deiilY generator Square wave oscillator Pulse generator Limit comparator Crystal controlled oscillatgor t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 57 II LINEAR ICs FUNCTION GUIDE 6. TIMER Func;tlon Single Timer Dual Timer Quad Timer Type Package NE555 8 DIP t8 SOP Maximum operating frequency: 500KHz Adjustable ~uty cycle KS555 tKS555H 8 DIP t8S0P Low power consumption by using CMOS process High speed operation Wide operation supply voltage: 2 to 18 volts Pin compatible. with NE555 NE556 14 DIP t14 SOP TTL Compatible Dual NE555 Time delay generation 14 DIP t14 SOP Low· power consumption by using C-MOS process Pin compatible with NE556 Time delay' generation tKS556 tNE558 16 DIP Wide supply voltage range: 4.5 to·.16V 100mA output current per section Time period equal RC Quad monostable Sequential timing Precision timing Features Application PreCision timing Pulse generator Precision timing Pulse generator 7. DATA CONVERTER les Functions A/D,D/A Converter Type Package tKSV3100A 40 DIP High speed 8-bit AID and 10-bit D/A Image processing converter on the single chip construction Video/Graphics ttKSV311Q 40 DIP Enhanced version of KSV3100A ttKSV3208 28. DIP High speed 8,bit AID converter 28 DIP 8-bit I'P-compatible AID converter with 8-channel multiplexer linearity error KAD0808: ± 1/2 LSB KAD0809: ± 1 LSB tKAD0808/9 AID Converter ttKAD0820AiB DMM A/D tKS7126 S.A.A. c8 Image processing Video/G raphics General purpose and I'P-interface system 8 bit I'P-conipatible AID converter with Track/Hold function linearity KAD0820A: ± 1/2 LSB KAD0820B: ± 1 LSB 40 DIP 3-1/2 digit LCD driver AID converter Digital multi-meter High speed quad 4-bit DIA converter Video/Graphics General purpose and I'P-interface system ttKDAOadO 16 DIP 8-bit D/A converter ttKDA0808 16 DIP 8-bit D/A converter ttKS25C02 ttKS25C03 16 DIP 8-bit CMOS successilie registers ttKS25C04 24 SDIP 12-bit CMOS successive approximation registers t New Product Applications 20 DIP ttKSV3404 D/A Converter Features app~oximation SAR of AID converter tt Under Development SAMSUNG SEMICONDUcroR 58 FUNCTION GUIDE. LINEAR ICs 8. MISCELLANEOUS ICs Function Toy Radio Control Actuator DC Motor Speed Controller Earth Leakage Detector Zero Voltage Switch Type Package KA2303 9SIP tKA2304 9SIP Features Application High gain amplifier, Peak detector, 3 Function T flip-flop, comparator with hysteresis, regulator, motor driver 2 Function ttKA2307 16 DIP Receiver 5 Function ttKA2308 14 DIP Transmitter 5 Function KA2401 8 DIP KA2404 TO-92L Stable voltage reference VreI = 1.27V (Typ.) Vcc =4-12V KA2402 8 DIP Stable current source Vcc =1.8-8V Stable voltage reference VreI = 1.0V (Typ.) Vee = 3.5-14.4V I tKA2407 TO-126 KA2803 8 DIP Low power consumption High noise immunity Few external components Earth leakage detector 8 DIP Easy operation either through the AC line or a DC supply Supply. voltage control External component are minimized Negative output current pulse up to 250mA (short circuit protection) ON, OFF temperature control Time proportional temperature control KA2804 t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 59 CROSS REFERENCE GUIDE LINEAR ICs 1; TELECOMMUNICATION ICs A. Dialer Application Pulse Dialer DTMF Dialer UMC SHARP SAMSUNG MOSTEK KS5805A KS5805B *MK50992 *MK50993 ·S2560A/B *T40992 *T40993 *LR40992 *LA40993 KS5808 KA2413 'MK5089 *PBD3535 (RIFA) 'S25089 'UM95089 UM95087 'LA4089 LA4087 AMI Othel'$ 'SBA5089 SBA5091 SBA5099 MK5370 *UM91230 'UM91210 LR48081 LR48082 *S7230A/B • LC7360 ttKS5823 . MK5380 MK5375/6 UM91250 UM91260 LR4803 PCD3315 SAMSUNG MOTOROLA MITEL CHERRY Tone/Pulse Switchable with Redial Memory tKS5819 tKS5820 ttKS5821 Tone/Pulse Switch able with 10 No. Memory B. Tone Ringer Application Tone Ringer 1 Chip Tone Ringer C.~peech SGS Others KA241 0 *ML8204 'CS8204 *TA31001 KA2411 'ML8205 *CS8205 *TA31002 Others tKA2418 MC34012/7 • LS1240 Network Application SAMSUNG SGS RIFA ITT ERSO Subset Amplifier KA2412A Speech Network with Dialer Interface tKA2425A tKA2425B • LS285/A PBL3726 TEA1045 *CIC9185 LS356 PBL3781 *MC34014 (MOTOROLA) D. Tone Decoder Application Tone Decoder SAMSUNG NATIONAL SHARP SIGNETICS Others LM567 *LM567 *IR3N05 'NE567 *XR567 (EXAR) LM567L *XAL567 (EXAR) t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 60 LINEAR ICs CROSS REFERENCE GUIDE E. FM IF Amplifier Application SAMSUNG MOTOROLA SHARP SPRAGUE Others FM IF Amplifier MC3361 " MC3361 IR3N06 ULN3859 "LM3361 I F. Codec, Codec Filter, Combo Codec Application SAMSUNG . wLaw Codec tKT5116J Codec Filter N/S FAIRCHILD SGS *TP5116 */LA5116 *M5116 2910 */LA5912 *M5912 *2912 Others tKT3040J *TP3040 wLaw Combo Codec ttKT3064J *TP3064 2913 wLaw Combo Codec ttKT3054J " TP3054 *2916 *MK5116 *ETC5040 MC14400·5 *ETC5064 EXAR SIGNETICS G. Interfaces Application Line Driver Line Receiver SAMSUNG MOTOROLA FAIRCHILD TI N/S MC1488 *MC1488 */LA1488 "SN75188 *DS1488 *XR1488 *MC1488 MC1489 *MC1489 */LA1489 *SN75189 *DS1489 XR1489 *MC1489 MC1489A * MC1489A */LA1489A * DS1489A *XR1489A *SN75189A * MC1489A H. Driver . Application Fluorescent Display Driver 8CH Source Driver SAMSUNG ttKA2651 Others SPRAGUE *UCN5815A KA2580A *UDN2580A KA2588A *UDN2588A I. UART Application _ Single UART Quad UART SAMSUNG ttKS5824 HITACHI . *HD6350 MOTOROLA Others * MC6850 tKS5812 t New Product tt Under Development * Direct Replacement c8 SAMSUNG SEMICONDUCTOR 61 CROSS REFERENCE GUIDE LINEAR ICs 2. VOLTAGE REGULATOR A. 3-Terminal Fixed Positive Voltage Regulator Description MC78XXAC/C Series (lo=1A) MC78MXXC Series (lo=0.5A) MC78LXXAC (lo=0.1A) SAMSUNG FAIRCHILD MC7805AC/C MC7806AC/C MC7808AC/C MC7885AC/C MC7809AC/C MC7810AC/C MC7Q11AC/C MC7812AC/C MC7815AC/C MC7818AC/C MC7824AC/C . MC7805AC/C MC7806AC/C MC7808AC/C I'A7805 I'A7806 I'A7808 I'A7885 MC7812AC/C MC7815AC/C MC7818AC/C MC7824AC/C ,.A7812 I'A7815 I'A7818 I'A7824 I'PC7812 I'PC7815 I'PC7818 I'PC7824 MC78M05C MC78M06C MC78M08C MC78M10C MC78M12C MC78M15C MC78M18C MC78M24C MC78M05C MC78M06C MC78M08C ,.A78M05C I'A78M06C I'A78M08C I'PC78M05 MC78M12C MC78M15C MC78M18C MC78M24C ,.A78M12C ,.A78M15C MC78L05AC I'A78L05AC I'A78L62AC MC78L26AC MC78L05AC MC78L62AC MC78L08AC MC78L82AC MC78L09AC MC78L12AC MC78L15AC MC78L18AC I'PC7808 Package AN7805 AN7806 AN7808 I'A78M24 I'PC78M08 I'PC78M10 I'PC78M12 I'PC78M15 I'PC78M18 I'PC78M24 AN7812 . AN7815 AN7818 AN 7824 AN 78M05 AN78M06 AN78M08 AN78M10 AN78M12 AN38M15 AN78M18 AN78M24 TO-22O MC78L05AC ~C78L24AC' KA78TXXAC/C Series (10 = 3A) KA78T05AC/C KA78T06C .KA78TOBC KA78T12AC/C KA78T15AClC KA78T18C KA78T24C MC78T05AClC MC78T06C MC78T08C MC78T12AC/C MC78T15AC/C MC78T18C MC78T24C LM323 (10 3A) LM323 (TO-3P) LM323 (T0-3/T0-220) c8 I'PC7805 MATSUSHITA T0-22O MC78L12AC MC78L15AC MC78L18AC MC7.8L24AC = NEC MOTOROLA SAMSUNG SEMICONDUCTOR I'A78L82AC I'A78L09AC ,.A78L12AC I'A78L15AC TO-92 TO-220 SH323 (TO-3) 62 LINEAR ICs CROSS REFERENCE GUIDE B. 3·Terminal Fixed Negative Voltage Regulator Description SAMSUNG MC79XXC Series (10= 1A) MC7902C MC7905C MC7906C MC7908C MC7910C MC7912C MC7915C MC7918C MC7924C MC79MXXC (l o =0.5A) MC79M02C MC79M05C MC79M06C MC79M08C MC79M10C MC79M12C MC79M15L MC79M18C MC79M24C ttMC79LXXAC (l o =0.1A) MC79L05AC MC79L12AC MC79L15AC MC79L18AC MC79L24AC MOTOROLA FAIRCHILD MC7905C MC7906C MC7908C ,.A7905· ,.PC7905 ,.A7908 ,.PC7908 AN7905 AN7906 AN7908 MC7912C MC7915C MC7918C MC7924C ,.A7912 ,.A7915 ,.PC79t2 ,.PC7915 ,.PC7918 ,.PC7924 AN7912 AN7915 AN7918 AN 7924 MC79M05C ,.A79M05 NEC MATSUSHITA Package ·TO-220. ,.A79M08 TO-22O MC79M12 MC79M15 ,.A79M12 ,.A79M15 MC79L05AC MC79L12AC MC79L15AC MC79L18AC MC79L24AC TO-92 c. Precision Voltage Regulator Description Adjustable Voltage Adjustable Voltage SAMSUNG MOTOROLA FAIRCHILD N/S NEC Package MC1723 p.A723 LM723 14 DIP ttLM317 LM317 ,.A317 LM317 TO-220 ttKA337 LM337 LM337 LM337 TO-220 ttKA350 LM350 LM350 LM350 TO-220 ,.PC574 TO-92 LM723 33V Regulator KA33V D•.Switching Voltage Regulator Qescription Adjustable 1.25V to 40V (fo = 100KHz) PWM 100KHz SAMSUNG ,.A78S40 MOTOROLA FAIRCHILD ,.A78S40 ,.A78S40 tKA3524 N/S TI Package 16 DIP LM3524 SG3524 16 DIP. t New Product tt Under Development c8 SAMSUNG SEMICONDUCTOR 63 II CROSS REFERENCE GUIDE LINEAR ICs 3~_ PRECISION VOLTAGE REFERENCE Description Adjustable Reference (2.5V-36V) 5V Reference-· 1.235V Reference SAM$UNG KA431 MOTOROLA FAIRCHILD TL431 ",A431 tKA336 ttKA385 LM385 TI N/S TL431 Package TO-92 t8 DIP t8 SOP LM336 TO-92 LM385 TO-92 4. OPERATIONAL AMPLIFIER Description SAMSUNG MOTOROLA NATIONAL Single OP Amp LM741 KA301/A KA733C ttKF351 MC1741 LM301/A MC1733C LF351 LM741 LM301/A LM733C LF351 LM358/A LM258JA LM2904 MC1458 MC4558 tKA9256 LM358JA L.M258 LM2904 MC1458 MC4558 LM358JA LM258JA LM2904 LM1458 lM324JA lM224JA LM2902 lM348 LM248 MC3403 ttMC3303 LM324JA LM224 lM2902 lM348 LM248 MC3403 MC3303 lM324JA lM224JA lM2902 LM348 lM248 Dual OP Amp Quad OP Amp FAIRCHILD MATSUSHITA ",A741 ",A301/A -",A733C ,..A1458 ",A4558 ,..A324 ",A224 ",A2902 ,..A348 ,..A248 ,..A3403 ,..A3303 Others ",PC301C AN6562 TA75358 AN4558 NJM4558 "TA7256 AN6564 TA75324 NJM3403A 5. VOLTAGE COMPARATOR Description SAMSUNG MOTOROLA NATIONAL FAIRCHILD LM311 LM211 lM311 LM211 lM361 LM261 LM710 LM311 LM311 LM211 Single Comparator lM311 LM211 tKA361 ttKA261 tKA7.10C ,..A710C JZA710C Dual Comparator LM393JA LM2903 lM293 KA319 ttKA219 LM393JA LM2903 lM293 LM393JA LM2903 LM293 LM319 LM219 LM339JA LM2901 lM239 LM3302 lM339JA LM2901 LM239 Quad Comparator- c8 SAMSUNG SEMICONDUCTOR LM339JA LM2901 LM239 LM3302 ,..A339 ",A2901 ",A239 ,..A3302 TI Others LM311 lM393JA lM2903 LM293 LM319 LM219 TA75393 AN6914 LM339 LM2901 LM239 LM3302 TA75339 AN6912 NJM319 64 CROSS REFERENCE GUIDE LINEAR ICs 6. TIMER Description SAMSUNG NE555 tKS555H KS555 Single Timer Dual Timer NE556 tKS556 Quad Timer tNE558 TI MOTOROLA NATIONAL SIGNETICS MC1455 LM555 NE555 NE555 TLC555 LM556 NE556 NE556 TLC556 Others TA75555 ICM7555 ICM7556 I NE558 7. DATA CONVERTER ICs Application SAMSUNG NATIONAL TI INTERSIL ITT UVC31 00 UVC3100 tKSV3100A A/D·D/A Converter KSV3100A up·date version ttKSV3110 High-Speed 8·Bit AID 8·Bit AID Converter ttKSV3208 tKAD0808l9 A DC0808/9 ttKAD0820 ADC0808J9 ADC82A ADC0820 TSC7126 ICL7126 KS7126 3·1/2 DMM AID 4·Bit Triple D/A Converter Others ttKSV3404 8·Blt D/A Converter SAR. ttKDA0800 DAC0800 ttKDA0808 DAC0808 ttKS25C02 OM 2502 ttKS2503 DM2503 ttKS2504 DM2004 DAC82 DAC08 MC1408 AD1408 8. MISCELLANEOUS ICs Application SAMSUNG Toy Radio Control Actuator SEGNETICS NATIONAL MITSUBISHI NEC KA2303 3 Function tKA2304 2 Function 5 Function .(RX) ttKA2307 5 Function (TX) ttKA2308 KA2401 DC Motor Speed Controller AN6612 KA2404 AN6610 ttKA2407 *AN6651 KA2803 Zero Voltage SW KA2804 c8 ",PC1470H tKA2402 Earth Leakage Detector" t New Product Others tt Under Development LM1851 *LA5521D ",PC147QH ·M54123 A7390 *",PC1701C * Direct Replacement SAMSUNG SEMICONDUCTOR 65 LINEAR ICs 3100A KSV ORDERING INFORMATION C N A+ T ~ BURN-IN (OPTIONAL) (SEE BURN-IN PR~GRAM) . PACKAGE TVP,E L-----------------TEMPERATURERANGE '---------------------------DEVICE NUMBER AND SUFFI~ (OPTIONAL) A: IMPROVED VERSION '------------------------------------ DEVICE FAMILY TEMPERATURE RANGE BLANK SEE INDIVJDUAL S'PEC PACKAGE TYPE CODE C COMMERCIAL 0 - + 70°C D I INDUSTRIAL - 25 - + 85°C -40-+!WC N M MILITARY -55 -+125°C J S 0 E B P INTEGRATED CIRCUIT KA LINEAR IC KS CMOS IC KT TELECOM IC LM NATIONAL MC MOTOROLA NE S[GNETICS KSV A/D-DIA CONVERTER KAD AID CONVERTER KDA D/A CONVERTER c8 SAMSUNG. SEMICONDUCTO~ W U L PL M H Z V A T X G PKG.TYPE SOIC CERAMIC DIP PLASTIC DIP (300/600 mil) SIP FOP SD (400 mil) SSD (Skinny Shrink DIP) (400 mil. Small Pitch) SHD (Shrink DIP) (300 mil. Small Pitch) ZIP PGA LCC PLCC TO-3 TO-3P TO-92 TO-92L TO-126 TO-220 TO-247 BARE CHIP 66 ,/ "~t,:;,?'hl~rP\i~~0~ :~,"/;; , ft PRODUCT INDEX (Continued) 3. Telecommunication Application Device KA2410 KA2411 . KA2412A KA2413 KA2418 KA2419 KA2425A1B KS5805A1B KS5808 KS5812 KS5819 KS5820 KS5821 KS5824 KT3040J KT3054J KT3064J KT5116J LM587C LM587L MC1488 MC1489/A MC3361 KA2580A KA2588A KA2651 Function Tone Ringer Tone Ringer Telephone Speech ·Circuits Dual Tone Multi Freque~cy Generator Tone Ringer with Bridge Diode Tone Ringer with Bridge Diode Telephone Speech Network with Dialer Interface Telephone Pulse Dialer with Redial Dual Tone Multi Frequency Dialer Quad Universial Asychronous Receiver and Transmitter Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Tone/Pulse Dialer with Redial Universial Asychronous Receiver and Transmitter PCM Monolithic Filter COMBO CODEC COMBO CODEC ,...Law Companding CQDEC Tone Decoder Micropower Tone Decoder Quad Line Driver Quad Line Receiver . Low Power Narrow Band FM IF 8-Channel Source Drivers 8-Channel Source Drivers Fluorescent Display Drivers Package 8 DIP 8 DIP 14 DIP 16 DIP 8 DIP 8 DIP 18 DIp· 18 DIP 16 DIP 40 DIP 22 DIP/SDIP 18 DIP 22 DIP/SDIP . 24 DIP 16 CERDIP 16 CERDIP 20 CERDIP 16 CERDIP 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 16 DIP/16 SOP 18 DIP 20 DIP 18 DIP Page 69 69 75 83 108 108 112 130 146 152 162 172 162 . 180 191 200 214 226 239 247 257 264 270 599 599 604 LINEAR INTEGRATED CIRCUIT KA24101KA2411 TONE RINGER The KA2410iKA2411 is a bipolar integrated circuit designed for telephone bell replacement. 8 DIP .FUNCTIONS • Two oscillators • Output amplifier • Power supply control circuit FEATURES • • • • • • Designed for telephone bell replacement Low current drain. Small size 'MINI DIP' package. Adjustable 2-frequency tone. Adjustable _rbling rate. • Built-In hysteresis prevents false triggering and rotary dial 'CHIRPS' Extension tone ringer modules Alarms or other alerting devices. External triggering or ringer disable (KA2410). Adjustable for reduced supply initiation current (KA2411) • • • • APPLICATION CIRCUIT 1·(KA2410) o--t bC:T'1."".,.,..---, . O.9~F 100K-200K ohm C. 22,.FI35V R2 165K±1% C2 o.47pF±5% Note: 1. Output amplifier 2. High frequency oscillator. 3. Low frequency oscillator 4. Hysteresis regulator Fig. 1 c8 SAMSUNG SEMICONDUCTOR 69 LINEAR INTEGRATED CIRCUIT KA2410/KA2411 ABSOLUTE MAXIMUM RATINGS (Ta Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature =25°C) Symbol' Value Unit V 30 400 -45 to 65 -65to 150 Vee Po Top' TS!lI rrm °C DC· = ELECTRICAL CHARACTERISTICS (Ta 25°C) (All voltage referenced to GND unless otherwise specified) Characteristic Symbol Test Condition Min Typ Max Unit 29.0 V Operating Supply Voltage Vee Initiation Supply Voltage l VSI See Fig. 2 17 19 21 V Initiation Supply Current l lSI KA2411-6.8K-Pin 2 to GND 1.4 2.5 4.2 mA Sustaining Voltage2 Vsus See Fig. 2 9.7 11.0 12.0 V Sustaining Current2 Isus No Load Vee=Vsus, See Fig. 2 0.7 1.4 2.5 mA Trigger Voltage3 VTA KA2410 Only Vee =15V 9.0 Trigger Current3 ITA KA24100nly Disable Voltage' VDlS KA24100nly Disable Current' lOIs KA24100nly -40 -50 Output Voltage High VOH Vee=21V, la=-15mA Pin 6=6V, Pin 7=GND 17.0 19.0 Output Voltage LOw VOl Vee=21V,la=15mA Pin 6=GND, p'in 7=6V liN (Pin 3) liN (Pin 7) High Frequency 1 High Frequency 2 Low Frequency fHl fH2 fL 10.5 12.0 V 20.0 10005 pA 0.5 V pA 21.0 V 1.6 V Pin 3=6V, Pin 4=GND Pin 7=6V, Pin 6=GND - - 500 - 500 nA nA R3=191K,C3=68oopF R3=191K,C3=6800pF R2 =165K, C2 =0.47"F 461 .576 9.0 512 640 10 563 704 11.0 Hz Hz Hz • NOTE (see electrical characteristics sheet) 1. Initiation supply voltage (Vs~~ is the supply voltage required to start the tone ringer oscillating. 2. Sustaining voltage (Vsus) is the supply voltage required to maintain oscillation. 3. VTA and irA are the conditidhs applied to trigger in to start oscillation for Vsus ~Vee ~VSI 4. VOIS and lOIS are the conditions applied to trigger in to inhibit oscillation for VSI~Vee 5. Trigger current must be limited to this value externally. c8 SAMSUNG SEMICONDUCTOR 10 LINEAR INTEGRATED CIRCUIT KA2410/KA2411 CIRCUIT CURRENT-5UPPLY VOLTAGE (No Load) 4.0 3.5 ~3.0 B 12.5 .iI ;t2.o V S .II ,.5 i-'" ~ II ,.0 0.5 10 14 18 Vee (V), Supply 22 26 30 34 """ge Fig. 2 APPLICATION NOTE The application circuit illustrates the use of the KA2410/KA2411 devices in typical telephone or extension tone ringer application. The AC ringer signal voltage appears across the TIP and RING inputs of the circuit and is attenuated by capacitor C, and resistor R,. C, also provides isolation from DC voltages (48V) on the exchange line. After full wave rectification by the bridge diode, the waveform is filtered by capacitor C4 to provide a DC supply for the tone ringer Chip. As this voltage exceeds the initiation voltage (Vsl),osciliation starts. With the components shown, the output frequency chops between 512 (f~,) and 640Hz·(fh2) at a 10Hz (fl ) rate. The loudspeaker load is coupled through a 13000 to 80 transformer. The output coupling capacitor Cs is required with transformer coupled loads. When driving a piezo-ceramic transducer type load, the coupling C 5 and transformer (13000: 80) are not required. However, a current limiting resistor is required. The low frequency oscillator oscillates at a rate (fl ) controlled by an external resistor (R2) and capacitor (C2). The frequency can be determined using the relation fl =111.289 R2 • C2. The high frequency oscillates at a fH" fH2 controlled by an external resistor (R3) and capacitor (C3). The frequency can be determined using the relation fHI=111.504 R3. C 3. fH2=1/1.203 R3 , C 3 • . Pin 2 of the KA2411 allows connection of an ex~ernal resistor RSl , which is used to program the slope of the supply current vs supply voltage characteristics (see Fig 4); and hence the supply current up to the initiation voltage (Vsi). This initiation voltage remains constant independent of Rsl . The supply current drawn prior to triggering varies inversely with RSl.· decreasing for increasing value of resistance. Thus, increasing the value of RSl• will decrease the amount of AC ringing current required to trigger the device. As such, longer sucribser loopS are possible since less voltage is dropped per unit length of loop wire due to the lower current level. RSl can also be used to compensated for smaller AC coupling capacitors (Cs on Fig 3) (higher impedance) to the line which can be used to alter the ringer equivalence number of a tone ringer circuit. The graph in Fig. 4 illustrates the variation of supply current with supply voltage ofthe KA2411. Three curves are drawn to show the variation of i~itiation current with Rsl . Curve B (RSl =6.81<) shows the I-V characteristic for the KA2411 tone ringer. Curve A is a plot with RSl <6.8KO and shows an increase in the current drawn up to the initiation voltage Vsi. The W charac, teristic after initiation remains unchanged. Curve C iIIurates the effect of increasing RSL above 6.8K Initiation current decreases but again current after triggering is unchanged. c8 SAMSUNG SEMICONDUCTOR 71 LINEAR INTEGRATED CIRCUIT KA2410/KA2411 APPLICAnQN CIRCUIT 2 (KA2411) 8 I------U-_.__----. 101(0 VOL ...---+---+------0----1 2 KA2411 2'JV Ro--+----' RSL c. Fig. 3 LINEAR INTEGRATED CIRCUIT KA2411 Supply Current (No Load) Vs. Supply Voltage 1-1- -- ---- , -- ,- - 75 as .. A)R".SKO I I 2.5 8) R,.-& 1.1; o.s iKcr.-1/ C)R... 'Sko ~ ~ i41i~ ) • : , I ~, , , • ;"'1- 610141822263034 Supply _go (V) Fig. 4, ,c8 Sj'MSUNG SEMICONDUCTOR ,72 LINEAR INTEGRATED CIRCUIT KA2410/KA2411 EQUIVALENT CIRCUIT (Pin 2 Input) INHIBITING OSCILLATION +Vcc KA2410 Pin 2 R O>Zt.); the main part is sent to the line Via R6. The imPedance At. is defined as.fu 1..3 V (R6+Ze)II(R5+Zt.) (~ R= ~+(R6+ZB)II(R5+Zt.) R6+Zt To reduce the receiving input Signal, also, In order to reduce power loss in R5 & Ze and to transfer the maximum power to the line via R6. R5+ZB> >R6+ZL R6+ZM=ZL c8 SAMSUNG SEMICONDUCTOR 81 LINEAR INTEGRATED CIRCUIT KA2412A Then the line impedance ZL grows lrom SOO ohm up to 900 ohm when the line length Increases. ' The voltage driven to the line is ZL x'" V L - RS+Zu +4 _IT In order to maximize sending Gain ZL»RS Therefore, in the case 01 the KA2412 test circuit: RS= 75, ZM =S.8K111, ZL =SOO ·VL .. 4 Z xZuh=28S.82h Zu+R8+ L • In receiving mode: ' , The J!C signal coming from the line is sensed across the secon 600mV and < 3.0 VOlt). 9 ,DP* Depressed Pushbutton (Output) - Normally low: A Logic "1" indicates one and only one, button of the DTMF keypad is depressed. 10 m* Tone output (Input) disabled. 1.1 MS* ' Mute/Single tone (Output) - A Logic "1" indicates a'row and/or column tone is being generated. A Logic "0" indicates tone generator is disabled. 12 A+* MPU Power Supply (input) - Enables pullups 'on the microprocessor section outputs, Additionally, this voltage will power the entire circuit (except tone Ringer) in the absence of voltage at V--, 13 110* Input/Output - Serial Input or Output data (determined by DO input) to or from the microprocessor for storing or retrieving telephone numbers. Guaranteed to be a Logic "1" on powerup if 00= Logic "0". 14 00* Data Direction (Input) - Determines direction of data flow through 110 pin. As a Logic "1", I/O is an input to the DTMF generator. As a Logic "0". I/O outputs keypad entires to the microprocessor. ES** Sidetorie Equalization terminal connects an external resistor between the junction of RS, R9 and V-, At loop currents greater than the equalization threshold this resistor is switched in to reduce the sidetone level. CL* Clock (Input) - Serially shifts data in or out of 110 pin. Data is transferred on negative edge typically at 20kHz. EV** Voice equalization terminal connecis an external resistor between V+ and V-, for loop length equalization. At loop currents greater than the equalization threshold this resistor is switched in by the equalization circuit to reduce the transmit and receive gains. 16,17 CR1,CR2 Ceramic Resonator oscillator input and feedback terminals, respectively. The DTMF dialer is intended to operate with a 500kHz ceramic resonator from which row and coJumn tones are synthesized. 28 CAL Amplitude CALibration terniinal for DTMF dialer. Resistor R14 from the CAL pin to V controls the DTMF output signal level at Tip and Ring. 35 FB Feed Back terminal for DTMF output. Capacitor C14 connected from FB to V+ provides ac . feedback to reduce the output impedance to Tip and Ring when tone dialing. 29 VR Voltage Regulator output terminal. VR is the output of a 1.1 volt voltage regulator which supplies power to the,speech network amplifiers and DTMF generator during signaling. To improve regulator efficiency at low lin!l,current conditions, an external PNP pass-transistor T1 is used in the regulator circuit. Capacitor C9 frequency compensates the VR regulator to prevent o s c i l l a t i o n . ' 33 BP Base of a PNP Pass-transistor. Under long-loop conditions where low line voltages would cause VR to fall below 1.1-volts, BP drives the PNP transistor T1 into saturation, thereby , minimizing the voltage drop across the pass transitor. At line voltages which maintain VA' above. 1.1 volts, BP biases T1 in the linear region thereby regulating the VR voltage. Transistor T1 also couples the ac speech signals from the transmit amplifier to Tip anti Ring at V+. 15 *KA2417 only c8 When a Logic "1", disables the DTMF generator. Keypad is not **KA2414 only SAMSUNG SE~ICONDUCTOR 94 KA2414/KA2417 (DELETION) LlNEARII2L INTEGRATED CIRCUIT PIN DESCRIPTION (Continued) (See Fig. 12 for external component identifications.) Pin Designation Function 34 V+ The more positive input to the regulator, speech, andDTMF sections connected to Tip and Ring through the polarity guard diode bridge. 30 V- The dc common (more negative input) connected to Tip and Ring through the polarity guard bridge. , 32 LR DC Load Resistor, ResiStor R4 from LR to V- determines the dc input resistance at Tip and Ring. This resistor is external not only to enable programming the dc resistance but also to avoid high on-chip power dissipation with short telephone lines. It acts as a shunt load conducting the excess dc line current. At low line voltages « 3.0 volts), no current flows through LA. 31 LC DC Load CapaCitor. CapaCitor C11 from LC to V- forms a low-pass filter which prevents the resistor at LR from loading ac speech and DTMF signals. 20 MIC Microphone negative supply terminal. The dc current from the electret microphone is returned to V- through the MIC terminal which is connected to the collector of an on-chip NPN transistor. The base of this transistor is controlled either internally by the mute signal from the DTMF generator, or externally by the logic input pin MM. 18 MM Microphone Mute. The MM pin proVides a means to mute the microphone and transmit amplifier in response to a digital control signal. When this pin is connected to a Logic "1" ' (> 2.0V) the microphone dc'return path through the MIC terminal is disabled. 22 TXI Transmit amplifier Input. TXI is the input to the transmit amplifier from an electret microphone. AC coupling c Rinp I TRC Piem. Tone Ringer Fig. 7 MICROPROCESSOR INTERFACE (KA2417 ONLy) The MPU interface connects the keypad and OTMF sections of the ETC to a microprocessor for storing and retrieving numbers to be dialed. Figure 8 shows the major blocks of the MPU interface section and the interconnections between the keypad interface, OTMF generator and microprocessor. Each button of a 12 or 16 number keypad is represented by a fourbit code (Figure 9). This four-bit code is used to load the programmable counters to generate the appropriate rr:JN and column tones. The code is transferred serially to or from the microprocessor when the shift register is clocked by the microproces- . sor. Data is transferred through the 110 terminal, and the direction of data flow is determined by the Data Direction (~O) input terminal. In the manual dialing mode, DO is a logic "0" and the four-bit code from the keypad is fed to the OTMF generator by the digital multiplexer and also output on the 1/0 terminal through the four-bit shift register. The data sequence on the 1/0 terl)1inal is 83, 82, 81, 80 aQd is transferred on the negative edge of the clock input (CL). In this mode the shift register load enable circuit cycles the register between the load and read modes such that multiple read cycles may be run for a singlekey closure. Six complete clock cycles are required to output data from the ETC and reload the register for a second look. In the automatic dialing mode, DO is a Logic "1" and the four-bit code is serially entered in the sequence 83, 82, 81, 80 into the four-bit shift register. Thus, only four clock cycles are required to transfer a number into the ETC. The keypad is disabled in this mode. A Logic "1" on the Tone Output (TO) will disable tone outputs until valid data from the microprocessor is in place. Subsequently 10 is switched to a Logie "0" to enable the OTMF generator. Figures10 and 11show the timing waveforms for the manual and automatic dialing modes and Table 2 specifies timing limitations. The keypad decoder's exclusive OR circuit generates the OP and MS output signals. The OP output indicates (when at a logic "1 ") t~at one, and only one, key is depressed, thereby indicating valid data is available to the MPU. The OP output can additionally be used to initiate a data transfer sequence to the microprocessor. The MS output (when at a Logic "1") indicates the OTMF generator is enabled and the speech network is muted. Pin A+ is to be connected to a source of 2.5 to 10 volts (generally from the microprocessor circuit) to enable the pullup circuits on the microprocessor intel'fitce outputs (OP, MS, 1/0). Additionally, this voltage will pOwer the entire Circuitry (except Tone Ringer) in the absence of voltage at V+. This permits use ofthe transmit and receive amplifiers, keypad interface, and OTMF generator for non-typical telephone functions. c8 SAMSUNG SEMICONDUCTOR 99 KA24141KA2417 (DELETION) LlNEARlI2L INTEGRATED CIRCUIT MICROPROCESSOR INTERFACE BLOCK DIAGRAM (KA2417 ONLY) r-----------~~~~~ID Excluslve-OA 8 }-=---, DP MS 8 Keypad Keypad Decoder 1---.:~r---'-'-""1 1-+""+'-I-..A'Comparators Shift ~":~sterl--_---I Enable Fig.S MPU INTERFACE CODES [Q 0 ~ 0 0 0 0 0 0 0 [] 0 0 0 ~ G I I I I C1 C2 Cs C4 Key ~ 1 2 - - Row Column Code (B3 - BO) 1 1 1 2 2 2 3 3 3 4 1 2 3 1 2 1111 '0111 1011 1101 0101 1001 1110 0110 ' 1010 0100 0011 0001 0010 0000 1100 1000 A1 3 A2 4 5 6 As 7 S 9 0 A B C 0 f- A4 * # .' 4 4 4 3 1' 2 3 1 2 3 2 4 4 4 4 1 3 Fig. 9 c8 , , sAMSUNG SEMICONDUCTOR 100 KA2414/KA2417 (DELETION) LlNEARlI2L INTEGRATED CIRCUIT OUTPUT DATA CYCLE FROM KA2417 NOTE: 00 - 'ro may be low (Tone generator enabled) if desired. ~____t~~ __D_ep___se_d_________________________~ __ R_ele_as_ed-rl_ 11111////1 1O~ MS~_ _~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~ DP _. I L _ _ _ _ _ _--!tOPCl H CL Fig. 10 INPUT DATA CYCLE TO KA2417 00 .--J Tone generation interval ~1·__~loo_o_o________~~~ roJ W~------~W ! L , MS~ DP _ CL I I I H tOOCl I--i tCllO tH f--+-l tl ---11.IlnfL...,~J1Jl.1UL tos --II-- H tOH IK)~~~ 1st Digit 2nd Digit 3rd Digit Fig. 11 c8 SAr-tSUNG SEMICONDUCTOR 101 · KA2414/KA2417 (DELETION) LlNEARlI2L INTEGRATED CIRCUIT TABLE 1 - FREQUENCY SYNTttEStZER ERRORS DTMF Standard (Hz) Tone Output Frequency with 500KHz Oscillator 697 770 852 941 1209 1336 1477 1633 696.4 769.2 '853.2 939.8 1207.7 1336.9 1479.3 1634.0 Row 1 Row 2 Row 3 Row 4 Column 1 Column 2 Column 3 Column 4 % Deviation from Standard -0.086 -0.104 +0.141 -0.128 -~.108 +0.067 +0.156 +0.061 TABLE 2 - TIMING LIMITATIONS Symbol Min Typ Max Unit Ref fel Clock Frequency 0 t,:, Clock High Time 15 p.S 10, 11 tl Clock Low Time 15 p.S 10,11 t r, tf Clock, Rise, Fall Time Clock Transition to Data Valid Time from DPHigh to CL Low Time from DO High toCLLow Data Set-up Time Data Hold Time Time from cL Low Low Time from TO High to DO High toy tOPCl tOOCl tos tOH tclTO tTOOO c8 Parameter toro SAMSUNG SEMICONDUC1"()R 20 30. kHz Figs. Figs. 2.0 p.S 10 p.S Fig. 10 20 p.S Fig. 10 20 p.S Fig. 11 10 10 p.S "s Fig. 11 Fig. 11 10 "s Fig. 11 20 "s Fig. 11 102 KA2414/KA2417 (DELETION) LlNEARII2L INTEGRATED CIRCUIT APPLICATIONS INFORMATION Fig 12 specifies a typical application circuit for the KA2414 and KA2417. Complete listing of external components are provided at the end of this section along with nominal component values. The hook switch and polarity guard bridge configuration in Fig. 12 is one of several options. If two bridges are used, one for the tone ringer and the other for speech and dialer circuits, then the hook switch can be simplified. Component values should be varied to optimize telephone performance parameters for each application. The relationships between the application circuit components and certain telephone parameters ,are briefly described in the following: On-Hook Input Impedance. R1, C15, and Z3' are significant components for on-hook impedance. C15 dominates at low f~uencies, R1 at high frequencies and Z3 provides the non-linearity required for 2.5V and 10V impedance signature tests. C15 must generally be s1.01'F to satisfy 5.0Hz impedance specifications. (EIA RS-470) Tone Ringer Output Frequencies R3 and C13 control the frequency (fo) of a relaxation oscillator. Typically fo= (R3 C13 + S.OpS) -1. The output tone frequencies are fof10 and fo/8. The warble rate is fo/64O. The tone ringer will operate with fo from 1.0KHz to 10KHz. R3 should be limited to values between 150K and 300K. Tone Ringer Input Threshold After R1, C15. and Z3 are chosen to satisfy on-hook impedance specifications, R2 is chosen for the desired ring start threshold. Increasing R2 reduces the ac input voltage required to activate the tone ringer output. R2 should be limited to values between O.8K and 2.0KO. Off-Hook DC Resistance R4 conducts the dc line current in excess of the speech and dialer bias current. Increasing R4 increases the input resistance of the telephone for line currents above 10mA. R4 should be selected between 300 and 1200. Off-Hook AC Impedance The ac input impedance is equal to the receive amplifier load impedance (at RXO) divided by the receive amplifier gain (voltage gain from V+ to RXO). Increasing the impedance of the receiver increases the impedance of the telephone. Increasing the gain of the receiver amplifier decreases the impedance of the telephone. DTMF Output Amplitude R14 controls the amplitude of the row and column DTMF tones. Decreasing R14 increases the level of tones generated at V+. The ratio of row and column tone amplitudes is internally fixed. R14 should be greater than 200to avoid excessive current in the DTMF output Amplifier. Transmit Output Level ' R10 controls the maximum signal amplitude produced at V+ by the transmit amplifier. Decreasing R10 increases the transmit output signal at V+. R10 should be greater than 2200 to limit current in the transmit amplifier output. c8 SAMSUNG SEMICONDUCTOR 103 II KA2414/KA2417 (DELETION) LlNEARlI2L INTEGRATED CIRCUIT Transmit Gain The gain from the microphone to the telephone line varies directly with R11. Increasing R11 increases the signal applied to R10 and the ac current driven through R10 to the telephone line. The closed loop-gain from the mi,crophone to the TXO terminal should be greater than 10 to prevent transmit amplifier oscillations. Note: Adjustments to transmit level and gain are complicated by the addition of receiver sidetone current to the transmit amplifier output current at V+. Normally the sidetone current from the receiver will increase the transmit signal (ifthe current in the receiver is in phase with that in R10). Thus the transmit gain and sidetone levels cannot be adjusted independently. Receiver Gain Feedback resistor R6 adjusts the gain at the receiver amplifier. Increasing R6 increases the receiver' amplifier gain. Sidetone Level 'Sidetone reduction is achieved by the cancellation of receiver'amplifier input signals from ~9 and R5. R8, R15, and C6 determine the phase of the sidetone balance signal in R9. The ac voltage at the junction of R8 and R9 should be 1800 out of phase with the voltage at V+. R91s selected such that the signal current in R9 is slightly greater than that in R5. This insures that the sidetone current in the receiver adds to the transmit amplifier output current. Microprocessor Interface (KA2417 Only) The six microprocessor interface lines (DP, TO, MS, DO, 1/0, and cr.) can be connected directly to a port, as shown in Figure 13. The DP line (Depressed Pushbutton) is also connected to an interrupt line to signal the microprocessor to begin a read data sequence when storing a number into memory. The KA2417 clock speed requirement is slow enough (typically 20kHz) so that it is not necessary to divide down the processor's system clock, but rather a port output can be toggled. This facilitates synchronizing the clock and data transfer, eliminating the need for hardware,to generate the clock. The DO pin must be maintained at a Logic "0" when the microprocessor section is not in, use, so as tei permit normal operation of the keypad. When the microprocessor interface section is not in use, the supply voltage at Pin 12 (A+) may be disconnected to conserve power. Normally the speech circuitry is powered by the voltage supplied at the V+ terminal (Pin 34) from the telephone lines. During this time, A+ powers only the active pullups on the three microprocessor outputs (DP, MS, and VOl. When the telephone is "on-hook," and V+ falls below 0.6cvolts, power is then supplied to the telephone speech and dialer circuitry from A+. Powering the circuit from the A+ pin permits communication with a micrpprocessor, andlor use of the transmit and receiver amplifiers" while the telephone is "on-hook." Equalization of Speech Network (KA2414 Only) Resistors R17 and R18 are'switched into the circuit when the voltage at the LR terminal exceeds the equalization threshold voltage (iypically 1.65V). R17 reduces the transmit and receive gains for loop currents greater than the threshold (short loops) by attenuating signals at tip and ring. R18 reduces the sidetone level which would otherwise increase when R17 is switched , into the circuit. The voltage VLR at LR terminal is given by VLR =(lL-ls)xR4. where IL =Ioop current Is=dummy load current (6.0 mA)+speech network current (4.0 mAl. Thus resistor R4 is selected to activate the equalization circuit at the desired loop current, However, R4 must be selected keeping in mind the fact that it also controls the dc resistance of the telephone. CapaCitors C18 and C19 prevent dc current flow into the EV and ES terminals. This reduces cliCks alld also prevents changes in the dc characteristic of the telephone when the EV andES terminals are switched to low impedance. i8 SAMSUNG SEMICONDUCTOR 104 KA2414/KA2417 (DELETION) LlNEARlI2L INTEGRATED CIRCUIT APPLICATION CIRCUIT 1 DTMF Pad Row-Column Switch Clolsure 4 7 5 8 S2 I SI, S2, controlled by hook switch; Illustrated in "on-hook" condition. Rt8 RING C17 Electret Microphone 'Rx used with 2-terminal mike only_ APPLICATION CIRCUIT 2 Fig_ 12 DTMF Pad Row-Column Switch Clolsure SI, S2, controlled by hook switch; Illustrated in "on-hook" condition. MC6800 System vss 'Rx used with 2-termlnal mike only. Fig_ 13 c8 SAMSUNG SEMICONDUCTOR 105 KA2414/KA2417 (DELETION) LlNEARII2L INTEGRATED CIRCUIT EXTERNAL ,COMPONENTS (Component labels referenced to Fig. 12, Fig. 13) Capacitors Nominal value I Description' C1 1.0"F,1OV Tone ringer filter capacitor: integrates the voltage from current sense resistor R2 at the input of the threshold detector. C2 4.7"F,25V Tone ringer input capacitor: filters the rectified tone ringer input signal to smooth the supply potential for oscillator and output buffer. C3 1.0"F,3.OV Transmit limiter'low-pass filter capaqitor: controls attack and decay time oftransmit peak limiter. C4,C5 O.1/IF Transmit amplifier input capacitors: prevent dc current flow into TXL pin and attenuates low-frequency noise on microphone lead. C6 O.05"F Sidetone network capacitor: provides phase-shift in sidetone path to match that caused by telephone line reactance. C7,C8 O.05"F Receiver amplifier input capacitors: prevent dc current flow into FM terminal and attneuates low frequency noise on the telephone line. C9 2.2"F,3.0V VR regulator capacitor: frequency compensates the VR regulator to prevent oscillation. C10 O.Q1,.F Receiver amplifier output capacitor: frequency compensates the receiver amplifier to prevent oscillation. C11 O.1,.F DC load filter capacitor: prevents the dc load circuit from a:ttenuating ac signals onV+. C12 O.01,.F Telephone line by pass capacitor: terminates telephone line for high frequency signals and preVents oscillation in the VR regulator. C13 620pF Tone ringer oscillator capacitor: determines clock frequency for tone and warble frequency synthesizers. C14 O.1,.F DTMF output feed back capacitor: ac couples feed back around the DTMF output amplifier which reduces output impedance. C15 1.0"F, 250vac NoncPoiarized tone ringer line capacitor; ac couples the tone ringer to the telephone line partially ------{,5 NON INVERTING OllTPUT OUTPUT AMP ~------------------------------------~3~----------------~4~------------~--------------------____------------~ GND SWEEP RATE ' CONTROL CAPACllOR OUTPUT FREQUENCY CONTROL RESISlOR Fig. 1 c8 SAMSUNG SEMICONDUCTOR 108 KA2418 LINEAR INTEGRATED CIRCUIT = ABSOLUTE MAXIMUM RATINGS (Ta 25°C) Characteristic Calling Voltage (f=50Hz) Continuous Calling Voltage (f=50Hz) 5 Sec ON/10 Sec OFF Supply Current Operating Temeprature Storage and Junction Temeprature Value Unit VAB 90 Vrms VAe 110 Vrms Icc Top TSIg 22 -20- + 70 -65-+150 mA °C °C Symbol ELECTRICAL CHARACTERISTICS (T. = 25°C unless otherwise specified) Characteristic Symbol Supply Voltage Vee Current Consumption without Load Ie Activiation Voltage VON Activiation Voltage Range VONR Sustaining Voltage VOFF Differential Resistance in Off Condition Ro Output Voltage Swing VOUT , Short Circuit Current Test Condition Min Typ Max 26 V 1.5 1.8 mA 12.2 13 V· 8 10 V 8 8.8 V Vs=8.8 to 26V RA=1kll 6.4 lOUT Unit kll Vcc-3 V 35 mA AC OPERATION Characteristic Symbol Output Frequencies fOUT' fouT2 Test Condition Vee =26V, R, =14kll Vce=OV Vcc=6V fouT' Range R, =27kll to 1.7kll Sweep Frequency R,=14kll,C,=100nF c8 SAMSUNG SEMICONDUCTOR Min lYP Max Hz' Hz 1,900 1,300 0.1 15 10 Unit KHz Hz 109 LINEAR INTEGRATED CIRCUIT KA2418 TEST AND APPLICATION CIRCUIT r------------------~w_-__, I R. I 1"F, 25(11//>C TIP O.22,.F 1 2.2KO .----"1'"-----U------l C2 I R2 I I 10K~ 10K 6 8 I I I I I I VAS TEL LINE I I Vour 4 I ~i~ I I Cl 100nF RING I R, I 12Kll I I I '-______ h . 2.67-10" = R,(KO) I ....------------..J --'_~--_---_+_----- 12= 1000 C,(nF) ~h fsweep=·-- 7 Fig. 2 DESCRIPTION The KA2418 tone ringer derive its powen supply by rectifying the AC ringing signal. It uses this power to activate two tone generators. The two tone fraquencies generated ara switched by an internal oscillator in a fast· sequence and made audible across an output amplifier in the loudspeaker; both tone fnequencies and the switching frequency can be externally adjusted. The device can drive either dineclly a piezo ceramic converter (buzzer) or small loudspeaker. In case of using a loudspeaker, a transfonmer is needed. An internal shunt voltage Regulator provides DC voltage to output stage, low fraquency oscillator, an High fnequency oscillator. To protect the IC from telephone line transients, a zener Diode· is included. EXTERNAL CC;>MPONENTS (refer to test circuit) R, : Output fnequency control nesistor C, : Sweep nate control capacitor R2 : Line input rasistor. R~ffects the tone ringer·input impedance. It also influences ringing threshold voltage and limits currant from line transients. . C2 : Line input capacitor. C2AC couples the tone ringer to the telephone line and controls ringer input impedance at low fnequencies. C3 : Ringer supply capacitor, C3 filters supply voltage for the tone generating circuits. R. : Activation voltage adjustable resistor c8 SAMSU~G SEMICONDUCTOR 110 KA2420 (DELETION) LINEAR INTEGRATED CIRCUIT VOICE SWITCHED SPEAKER-PHONE 28 DIP The KA2420 speaker phone chip includes amplifiers, attenuators, and control functions necessary to design a high quality speaker phone system. It also includes a.microphone amplifier and audio power amplifier for speaker, background sound level monitoring system, attenuation control svstem, and the necessary regulated voHages for internal and the external circuits. This will permit operation from the mains with no additional power supply required. The chip select pin will facilitate power down 'when the chip is not selected. The volume control may be implemented by using an external potentiometer. The KA2420 can be used in a wide variety of applications such as; intrecom systems, business, automotive or household telephones. 28 SOP~ FEATURES • • • ,• • • • • Level detection and attenuation controls on single chip Monitoring for background noise level with large time constant On-chip regulation for supply and reference' voltages Wide range of operation due to signal compression Very low output power (10mW typ.) with peak limiting for minimizing distortion Chip Select allowing standby mode of operation ORDERING INFORMATION Volume can be controlled linearly 28 pin' plastic DIP & SOP package Device Package Operating Temperature BLOCK DIAGRAM KA2420N 28 DIP KA2420D 28 SOP -20_+60°C r--------------------,I I TRANSMIT CHANNEL I SPEAKER I ~I~-R...E-C-EI-VE-C-H-A-N-NE 1.6V), the chip is in the standby mode drawing O.5mA. An open CS pin is a logic "0 ". Input impedance is nominally 140KO. The input voltage should not exceed 11V. 19 SKI Input to the speaker amplifier. Input impedance is nominally 20KO. Vee A 5.4V regulated output which powers all circuits except the speaker amplifier output stage. Vee can be used to power external circuitry such as a microprocessor (3.0mA max.). A filter capaCitor is required. The KA2420 can be powered by a separate regulated supply by connecting V+ and Vee to a voltage between 4.5V and 6.5V while maintaining CS at a logic "1". 20 c8 SAMSUNG SEMICONDUCTOR 112 KA2420 (DELETION) PIN DESCRIPTION LINEAR INTEGRATED CIRCUIT (Continued) Description Pin Name 21 VB An output voltage equal to approximately Vcc12 which serves as an analog ground for the speakerphone system. Up to l.5mA of external load current may be sourced from VB. Output impedance is 2500. A filter capacitor is required. 22 Gnd Ground pin for the IC (except the speaker amplifier) 23 XDC Transmit detector output. A resistor and capacitor at this pin hold the system in the transmit mode during pauses between words or phrases. When the XDC pin vohage decays to ground. the attenuators switch from the transmit mode to the idle mode. The internal resistor at XDC is • nominally 2.6KO (see Fig. 1) 24 VLC Volume control input. Connecting this pin to the slider of a variable resistor provides receiVe mode volume control. The VLC pin voltage should be less than or equal to VB. 25 ACF Attenuator control filter. A capacitor connected to this pin reduces noise transients as the attenuator control switches levels of attenuation. 26 RXO Output of the receive attenuator. Normally this pin is ac coupled to the input of the speaker amplifier. 27 RXI Input of the receive attenuator. Input resistance is nominally 5.oKO. RRX A resistor to ground determines the nominal gain of the receive attenuator. The receive channel . gain is directly proportional to the RRX resistance. 28 ABSOLUTE MAXIMUM RATINGS (Voltages referred to Pin 22, T.=2S0C) Ch~racteristic Value Unit Speaker Amp Ground (Pin 14) V + Terminal Voltage (Pin 16) CS (Pin 18) VLC (Pin 24) Storage Temperature +3.0. -1.0 +12. -1.0 +12. -1.0 Vee. -1.0 -65-150 V V V V ·C "Maximum Ratings" ~re those values Ileyond which the safety of the device cannot be guarariteed. They are not meant to imply that the devices should be operated at these limits. The "Electrical Characteristics" tables provide conditions for actual device operation. RECOMMENDED OPERATING CONDITIONS Characteristi~ Value Unit O-S.O mVrrns Speaker Amp Ground (Pin 14) -10-10 mV V+ Terminal Voltage (Pin 16) +6.0-11 V Microphone Signal (Pin 9) CS(Pin 18) 0-11 V lee (Pin 20) 0-3.0 mA 0.5SVB-VB V Receive Signal (Pin 27) 0-2S0 mVrrns Ambient Temperature -20:"'6(l OC VLC(Pin24) c8 SAMSUNG SEMICONDUCTOR 113 . . KA2420.(DELETION) . . LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Refer-to Fig. 1) Characteristic Symbol Test Condition Min lYP Max Unit 9.0 800 mA SUPPLY VOLTAGE V+ Supply Current Iv + V+=11V, Pin 18=0.7V . V+=11V, Pin 18=1.6V Vee Voltage Vee V+=7.5V Vcc Line Regulation IlVC9 4.9 Ji'.. 5.4 5.9 V 6!5V :D Z -t m C) ~ ~ m c -o. 0 :D ...... ...... 0> Fig. 1 ·1 §i KA2420 (DELETION) LINEAR INTEGRATED CIRCUIT TRANSMIT ATTENUATOR Vs RTX -10 JaxGl.n -~ +10 +10 ....... <:.6·~l i'.. .... -20 ~-30 r--., "lr-.. 1 MaJG~innU - - &V8cf.l50mV -20 e /,' \ I"" -10 " ~ Max Attenuation &V8cf·l50mV -40 / ~ -30 ~ ./ ~Max Attenuation -40 ~ -50 -60 RECEIVE ATTENUATOR Vs RRX RJ.JK f-vLf"la I' -70 -50 " ' r-- RR• 3OK VLC·VB RRX(OHMS) Fig. 3 Fig. 2 GAIN AND ATTENUATION Vs RESISTOR RATIOS -10 -20 JRX~l~K VB +5 t--RTX.91K RR·3OK l""'r--. l/~ f8 -60 -15 i, ~ (ID( " ~ , ./ 40 /" / : -.l I DB ~ 1.0 / "' ~ I--...... L " 60 80 100 &YacI (MILUVOLTS) Fig. a ,...... J ~~ / / 200 V f'.. RR=3OK RTX-91K RRX.18K -25 c8 , Level LOG AMP TRANSFER CHARACTERISTICS GRX . / " -20 -35 , 0.4 D.6 . YLCIV. 0.2 i "- -15 -30 r\ Minimum :-- Recommended 250 -5 18 : 1,\ Fig. 5 . -10 f-- JL ~ -40 10 5.0 ATTENUATOR GAIN Va aYacf +5 V v: VLC.va 1.0 RATIO Fig. 4 .i. : I\. -35 1 0.5 V GRy'" Li, -30 I 1111 0.1 ,, , : i) ATX vs. RTXlRR &V8cf·150mV ARX vs. ARXIRR &V8cf·6.0mV \ -20 ~ I<' -50 : Receive I"roo... -40 ! GTX -10 t - - Modo i)( -30 r-.. -5 t--LCUi1 V &V8cf-l50mV 'II ATTENUATOR GAIN Vs VLC ~T) R~x/bR r-- ..:1Vacf= 6.0mV ~::~ RRXlRR~ lOOK 10K lK 1M RTX(OHMS) +10 II Usable Range - -70 lOOK 10K ., &V8cf-6.OmV -80 50 - f'- 120 INPUT~ CURRENT (RLI, TLI. XOI) ~ 140 SAMSUNG SEMICONDUCTOR 0 180 I Vi -20 + (RLO. TLO, CP2)- OUTPUT, I I VOLjE -40 -80 DC INPUT CURRENT (foA) Fig. 7 -80 117 KA2420 (DELETION) LINEAR INTEGRATED CIRCUIT SPEAKER AMP OUTPUT Va SUPPLY VOLTAGE ,. LOG AMP TRANSFER CHARACI'ERISTICS ".,.. ~ 120 / I-I--+-+- / .V 2D 0 I No load 250 Load I '/ / VL 30 V k": -- . 4.05.06.07DS.o V+ (VOLTS) fig. I '~r , t-- 9.\..1011 RESPONSE AT CP2 AND CPt 600 - I ",vepl (Pin 1'1) 500 ./ ,... -~...- ~ / V / I I 100 fl AVCP2(Pin 12) V 0 1O!J 150 YMCO (rrN RMS) Fig. 1. 200 TRANSMIT DETECTOR OPERATION Inpu~i:~1111111~1111111111111111111111111111111111~I---~m~llilllllllllllllllll~ J 1 . CP2 (Pin 12) .1 . I. ..IV, Solid ~~~~~Pl Don.dLine=. Noninverting \ . Cit dV ~ c(~'ZV/s.ec) 10pA (~200mV) . r-r-------------- I ~~~~~rT~;~~'t __ ~ ~ ~. . I· :1' 2.7xav, r 36rnV 7 Slope = O.5V/sec I 4 Volts XDC (Pin 23) ,~ c8 SAMSUNG SEMICONDUCTOR NOTE: Above values are typical based Fig. 11 on components shown in Fig. 1. 118 LINEAR INTEGRATED CIRCUIT KA2420 (DELETION) SUPPLY CURRENT Vs SUPPLY VOLTAGE Vs SPEAKER POWER SUPPLY CURRENT Vs SUPPLY VOLTAGE ao 35 71J / 6.0 V1 100.1- \ 30 'I 5.0 'i+ I 8Oi- I OS=o 5OJ- 25 VSKOa OVrms ~ .§. 4.0 ..! ..! 20 3.0 ~ 20rriW . --- I 21J ,A 15 1.0 ./ :...t CS=1 I 4.0 5.0 6.0 71J 8.0 9.0 V+(VOLTS) Fig. 12 10 6IJi ./ 10 11 10rriW, 41J 6.0 5.0 7.0 6.0 9.0 V+(VOLTS) Fig. 13 10 11 SUPPLY CURRENT Vs SUPPLY VOLTAGE (see Fig. 14) 25 i i ALTERNATE POWER SUPPLY CONFIGURATION ,i-, 20 -cs Vee 16 22 . V+ iI ,,, , ,, , I i , ,, I Vs 1i7 ,/ (Regu lated supply) Zl1000.F Fig. 14 5.0 r.'7 o ~ 4.0 SWITCHING TIME I I II ,' I ,, 10 Is J-------! Operating Range ... , ,, 15 20 Allowahle ,, KA2420 18 I I I L--- V- .......-; , ,, / ,/ i , : ,,, I I I I 5.0 61J V.(VOLTS) Fig. 15 7.0 6.0 The switching times of the speakerphone depends on the external components and the instantanious operating conditions at the time when a change takes place. For example, the switching time for changing between transmit ~nd receive modes is much longer than that from idle to transmit. The components connected at pin 5 "transimit turn-on': pin 6 "transmit-turn-off': pin 7 '~receive-turn-on" and pin 8 "receiveturn·off" have major influence on the timing between the transmit and receive modes. The Tx·Rx comparator compares the relative and not the absolute values so the above referenced four timing functions interact with each other. The timing from transmit to idle is affected by the components at pins 11, 12, 13 and 23. The timing from idle to transmit is faster and hence the components have no major influence on it. c8SAMSUNG SEMICONDUCTOR 119 I LINEAR INTEGRATED CIRCUIT KA2420 (DELETION) The table below indicates the degree of influence of various components on the switching time, including the volume cont.rol; Additionally, the following should be noted: 1) The RCs at'Pin 5 and Pin 7 affect the sensitivity of the respective log amplifiers, or how loud the speech must be for gain control of the speakerphone circuit. 2) The RC at Pin 13 controls the sensitivity of the transmit detector circuit. 3) The switching speed and the relative response to transmit signal are affected by the volume control, in manner as follows: When the \/OIume control reduces, the signal at TXO increases, and consequently the signal to the TLI pin in the receive mode circuit. Components RC at Pin 5 RC at Pin 6 AC at Pin 7 AC at Pin 8 AC at Pin 11 C at Pin 12 AC at Pin 13 AC at Pin 23 V at Pin 24 C at Pin 25 I I Tx to Rx Rxto1X , high medium medium high low low low low medium medium medium high high medium no influence no inlluence no influence no influence no influence medium I Txtoldle no influence . no influence no influence noinlluence medium high low high ·noinlluence low . Switching response times for the circuit of Fig. 1 are shown in the photographs of Fig. 16 and Fig. 17. In Fig. 16, the circuit is supplied a continuous receive signal of 1.1mVp.p at AXI as shownTrace #3. Mel as shown. Trace #1 openites a repetitiVe signal of 7.2rriVp.p for 120msec, and repeated every 1sec. Trace #2 is the TXO output being about 650mVp.p at its maximum. Trace #4 is the RXO output being about 2.2mVp.p at its maximum. The switching time from the receive mode to transmit mode is about 40msec required for TXO to turn on, and for RXO to tum off. After the signal at MCI is turned off, the switching time back to the receive mode is about 210msec. In Fig. 17 a continuous signal of 7.6rriVp.p is supplied to MCI as shown Trace #1, and a repetitive burst signal of 100rriVp.p is supplied to AXI as shown Trace #3 for 12Omsec;and repeated every 1sec. Trac~ #2 is the TXO output and is about 9OrriVp.p at its, maximum, and Trace #4 shows the AXO outpufbeing about 150rriVp.p at its maximum, In this sequence, the circuit switches between the idle mode\and the receive mode. The required 'switching time from idle to receive modeS is about 70msec as shown in the first part of Trace #2 and Trace #4. After the receive signal is turned off, the switching time back to the idle mode is about 100msec. All of above mentioned switching times can change significantly not only by varying the external components but also by varying the amplitude of input signals. . IDLE-RECEIVE SWITCHING TRANSMIT-RECEIVE SWITCHING Burst Input @ MCI 2 Oulpul @ TJ(O 3 Inpul@RXI 4 Output@RXO Inpul@ Mel OUlpul@TXO 2 Bursllnput @ RXI OUlpUI- RXO Time Base=30msJOiv Fig. 16 c8 SAMSUNG SEMICONDUCTOR Fig. 17 120 LINEAR INTEGRATED CIRCUIT KA2420 (DELETION) BASIC LINE POWERED SPEAKERPHONE S1 .----------..-- --+__ '--_---'1-:...- 56K ".._~_ rTXIIDLE ..J Ax _ _--. _" rTx :..J Idle Compartors A & B=LM393 (Dual) Fig. 19 qs'SAMSUNG SEMICONDUCTOR 121 KA2425A1B " LINEAR INTEGRATED CIRCUIT TELEPHONE SPEECH NETWORK WITH DIALER INTERFACE 18 DIP The KA2425AiB is a Telephone Speech Network Integrated Circuit. which Incorporates adjustable transmit, receive, and sldetone functions, a dc loop interface Circuit, tone dialer Interface, and a regulated output voltage for a pulse/tone dialer. Also included is an equalization amp which compensates gains for line length variations. The conversion from 2 to 4 wire Is accomplished with a supply voltage as low as 1.5 volts. FEATURES • Transmit, Receive, and Sidetone Gain Set by External Resistors • Loop Length Equalization for Transmit, Receive, and Sidetone Functions • Low Voltage Operates Down to 1.5 volts (V+) in Speech Mode • Provides Regulated Voltage for CMOS Dialer • MUTE: KA2425A, MUTE: KA2425B • DTMF Output Level Adjustable with Single Resistor • Compatible with 2·Termlnal Electric Microphones (ECM) • Compatible with Receiver Impedance. of 1500 and Higher BLOCK DIAGRAM Tip .-----} ~~elver Ring 0 - - - - ' (Mute) voo Regulator Mute Logic DTMF Driver DTMF Input c8 To Dialer Circuit SAMSUNG SEMICONDUCTOR· • From Microphone Mute Input PulseiTone Select 122 KA2425A1B LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Voltage referred to V-, Ta=25·C) (see Note 1.) Characteristic Value V+ Voltage Voo (externally applied, V + =0) Unit -1.0, +18 Vdc -1.0 +6 Vdc VLR - 1.0, V + - 3.0 Vd MT, MS Inputs -1.0, Voo +1.0 Vdc Storage Temperature . -65, +150 ·C Note 1: . Devices should not be operated at these values. The "Recommended Operating Conditions" provide conditions for actual device operation: RECOMMENDED OPERATING CONDITIONS Characteristic V + Voltage (Speech Mode) (Tone Dialing Mode) Value Unit +1.5 to +15 +3.3 to + 15 Vdc Vdc o to Irxo (Instantaneous) Ambient Temperature ELECTRICAL CHARACTERJSTICS Characteristic 10 mA ·C -20 to +60 Symbol (Refer to Figure 1) (Ta=25·C) Test Conditions Min Typ Max Unit IL= 2O rn A IL=30mA IL= 120mA IL=20mA IL=30mA 2.6 3.0 7.0 4.1 4.6 3.2 3.7 8.2 4.9 5.4 3.8 4.4 9.5 5.7 6.2 V+=1.7V V + = 12V V + = 12V 4.5 5.5 6.0 7.1 8.4 8.8 9.0 12.5 14.0 V+ -VLR V+ -VLR - 2.7 4.3 - 36 57 94 KG LINE INTERFACE V+Voltage Speech/Pulse Mode Speech/Pulse Mode Speech/Pulse Mode Tone Mode. Tone Mode V+ V +Current (Pin 12 Grounded) Speech Mode Speech/Pulse Modes Tone Mode 1+ LR Level Shift Speech/Pulse Mode Tone Mod.e LC Terminal Resistance. Vdc mA 6.VLR RLe VdC VOLTAGE REGULATORS VR Voltage Load Regulation Line Regulation VR 6.VRLO 6.VRLN (V+=1.7V) OmA 100KO. Signals from the line and sidetone amplifier are summed at RXI. 8 RXO Receive amplifier output. RXO is biased by a 2.5mA current source. Feedback maintains the DC bias voltage at:::: O.65V. Increasing R4 (between RXO and RXI) will increase the receive gain. C4 stabilizes . the amplifier. C3 couples the signals to the receiver. The 2.5mA current source is reduced to O.4mA when dialing. 9 RMT Receiver Mute. The AC receiver current is retumed to V - through an open collector NPN transistor and a parallel 10KO resistor. The base of the NPN is controlled by'an internal mute signal. During dialing the tr.ansistor is off, lel!ving the 10KO resistor in series with the receiver. 10 V- Negative supply. The most negative input connected to Tip and Ring , through the polarity guard diode bridge. 11 VR Regulated voltage output. The VR voltage is regulated at 1.2V and biases the microphone ,and the speech circuits. An internal series pass 'PNP' transistor allows for regulation with a line voltage as low as 1:5V. Capacitor Cs stabilizes the regulator. 12 LC DC load capacitor. An external capacitor C7 and an internal resistor form a low pass filter between V + and LR to prevent AC signals from being loaded by the DC load resistor R5• Forcing LC to V - will turn off the DC load current and increase the V + voltage. , , Description Name SAMSUNG SEMICONDUCTOR 126 KA2425A1B LINEAR INTEGRATED CIRCUIT PIN DESCRIPTION (See Fig. 1) (Continued) Pin No. Name Description 13 LR DC load resistor. Resistor R5 from LR to V - determines the DC resistance of the telephone, and removes power dissipation from the chip. The LR pin Is biased 2.8 volts below the V + voltage (4.5 volts in the tone dialing mode) 14 V+ Positive supply. V + Is the positive line vol1age (from Tip & Ring) through the polarity guard bridge. All sections Qf the KA2425A/B are powered by V + . 15 Voo Voo regulator. Voo Is the output of a shunt type regulator with a nominal voltage of 3.3V. The nominal output current is Increased from 550I'A to 2mA when dialing. Capacitor Cg stabilizes the regulator and sustains the Voo voltage during pulse dialing. ~6 TI Tone input. The DTMF signal from a dialer circuit Is input at TI through an external resistor R7. The current at TI is amplified to drive the line at V +. Increasing R7 will reduce the DTMF output levels. The Input Impedance at TI is nominall 1.25KO. 17 MS Mode select. This pin is connected through an internal 6OOKO resistor to base of an NPN transistor. A logic "1" (>2.0V) selects the pulse dialing mode. A logic "0" «0.3V) selects the tone dialing mode. 18 Ml Mute input for KA2425A. MT is connected through an internal 100KO resistor to the base of a PNP transistor, with the emitter at Voo. A logic "0" «1.0V) will mute the network for either pulse or tone dialing. A logic "1" (>Voo -0.3V) puts the KA2425A into the speech mode. MT c8 II Mute input for KA2425B. MT Is connected through an internal 5OKO to the base of a NPN transistor, with the collector to the base of a PNP transistor. A logic "1" (>Voo-0.3V) will mute the network for . either pulse or tone dialing. A logic "0" « 1.0V) puts the KA2425B into the speech mode. sAMSUNG SEMICONDUCTOR 127 LINEAR INTEGRATED CIRCUIT KA2425A1B Fig. 1 Test Circuit 'Tip 0-------_ C8 2.0 ~ Rlngo----------- Rl lOOK R7 22K DTMF Input >-.J\I\/v----J Voo Voo Output---~-{15}---1r-----.J C9 o.l;h Mute>-----'~ Pulse/Tone Select c8 SAMSUNG SEMICONDUCTOR 128 KA2425A/B LINEAR INTEGRATED CIRCUIT Fig. 2 DTMF Driver Test 22K v+ TI 400mVrms 1.0KHz ,+; 0.02 KA2425A1B Iloop LR M'f .:.1.0V MS 1 LC V- 47 I Fig. 3 Transmit and Sidetone Level Test 0.05 VR TXI '---II1II11---1 EQ Txe v+ III < .., 8.2K ('II ~ LR lo: LC c( Voo Mf v- Fig. 4 AC Impedance, Receive and Sidetone Cancellation Test 150K v+ 8.2K STA V+ 0.05 RXI 33K Rxe 10 '~f·~l c8 SAMSUNG SEMICONDUCTOR III LR ..,< ~ lo: f' 47 ('II 0.2 hoop 6000 250mVrms (VS) 1,OKHz 129 CMOS INTEGRATED CIRCUIT KS5805A1KS5805B TELEPHONE PUlSE DIALER WITH REDIAL The KS5805AJB is a monolithic CMOS integrated circuit and provide!j all the features required for implementing a pulse dialer with redial. 18 DIP I FUNCTIONS • • • • • • • • Muie output logic "0" Pulse output logic "0" RC oscillation for reference frequency Designed to operate directly from the telephone line Used CMOS technology for low voltage, low power operation PoWer up clear circuitry KS580SA pin 2: V REF KS5805B pin 2: Tone out FEATURES • Uses either a standard 2 of 7 matrix keyboard with negative true common or the inexpensive form A·type keyboard • Make/Break ratio can be selected .• Redial with· or ff • Continuous MUTE . • Tone signal output or on-chip reference Voltage by bonding option on chip • 10 ppS/20 pps can be selected . TEST CIRCUIT GND vee vee~~--------------------------~--------~--------, 1Mil KS5805 AlB 66% Break 20pps Fig. 1 c8 SAMSUNG SEMICONDUCTOR 10pps 130 CMOS INTEGRATED CIRCUIT KSS80SAlKSs80SB ABSOLUTE MAXIMUM RATINGS (Ta=25°C) Characteristic DC Supply Voltage Voltage on Any Pin Power Dissipation Operating Temperature Storage Temperature Symbol Vee Y'N Po Topr Tstg value Unit 6.2 Vee +0.3. Gnd-0..3 SOO.O -30-+60 -6S-+1S0 V V mW "C °C II DC ELECTRICAL CHARACTERISTICS (T. =2SoC unless otherwise specified) Characteristic Symbol Test Conditions Min Typ 2.S Max Unit V Supply Voltage Vee Key Contact Resistance RKI 1 KP Keyboard Capacitance CKI 30 pF Key Input Voltage K'H K'l 2 of 7 input mode '6.01 0.8Vee Vee Gnd O.2Vce V Key Pull-Up Resistance K,Au Vcc =6.0V 100 KO Key Pull-Down Resistance K'AD V'N=4.8V 4.0 KO Mute Sink Current 1M Vee=2.SV Vo=O.SV Pulse Output Sink Current Ip Vce=2.SV Vo=O.SV Tone Output Sink Current Irl Vec=2.SV Vo=O.SV Tone Output Source Current IrH Vce=2.SV Vo=O.SV Memory Retention Current Operating Current 3 2S0 JA 4 .2S0 JA All outputs under no load 100 0.001 IAEF Vec-VAEF=6.0V 4 - .. . lop VAEF Output Source Current Note 1) 2) 3) 4) S) 6) mA 1.0 0.7 Vcc =6.0V Vo=6.0V 1 2 IMA IlKG . 1 p.A SOO All outputs under no load Mute or Pulse Off Lelikage Notes 1.0 7.0 p.A 1S0 1.0 6 p.A JA 2,3 mA S Applies to key input pin. (R,-R•• C,-C 3) Applies to MUTE output in. Applies to J50rsE output pin. Applies to TONE pin (KSS80S8) Applies to VAEF pin (KSS80SA) Current necessary for memory to be maintailled. All outputs unloaded . • Typical values l!.re to be used as a design aid are not subject to production testing. 131 KS5805AIKS5805B CMOS INTEGRATED CIRCUIT = AC ELECTRICAL CHARACTERISTICS (Ta 25°C) Charactistic Symbol 1\'p Min Max Unit Notes Oscilator Frequency Fose 4 KHz 1 Key Input Debounce Time Toe 10 ms 3,4 Key Down Time for Valid Entry TKO 40 ms 4,5 Key Down Time During Two-Key Roll Over tKR 5 ms 4 Oscillator Stat-Up Time (Vee =2.5V) tos 1 Mute Valid After Last Outpulse tMO 5 ms 3,4 Pulse Output Pulse Rate PR 10 PPS 2 On-Hook Time Required to Clear Memory IoH ms 4 Pre-Digital Pause Tpop 800 ms 3,4 Inter-Digital Pause T,op 800 ms 3,4 Frequency Stability . Vee=2.5-3.5V Af ±4 % Frequency Stability Vee =3.5 - 6.0V Af ±4 olb Tone Output Frequency FlONE 1 KHz Note: 1) 2) 3) 4) 5) 6) 300 ms 4,6 Rs=2MO, R=220KO, C=390pF. If pin 10 is tied to Vee, the output pulse rate will be 20pps. If the 20pps option is selected, the time will be 1/2 these shown. These times are directly proportional to the oscillator frequency. Debounce plus oscillator start-up time s 40ms. If the 20pps option is selected, the tone output frequency will be 2KHz. (KS5805B ONLY) . PIN CONNECTIONS· Pin 1: Vee Pin 2: Vref (KS5805A)/Pacifier tone (KS5805B) Pin 3: Column 1 Pin 4: Column 2 Pin 5: Column 3 Pin6:GND Pin 7: RC Oscillator Pin 8: RC Oscillator Pin 9: RC Oscillator c8 SAMSUNG SEMICONDUCTOR Pin Pin Pin Pin Pin Pin Pin Pin Pin 10: 11: 12: 13: 14: 15: 16: 17: 18: 10/20pps Select Make/Break Select Mute Output ROW 4 ROW 3 ROW 2 ROW 1 On-Hook/Test Pulse Output 132 CMOS INTEGRATED CIRCUIT KS5805AIKS5805B TIMING CHARACTERISTICS Digit Key Input Digit Redial ----~L2-Jr-----,~r-------------,~r--~-------------- Tone output nnnn - Column scan .- (only KSS80SB) . ---utrUlIUl- -soo'H;-----.IUl.J""LJlf -------:------uu---- Row scan ~-----------lIlfL..IlIl----------W- o_n.HOOk input ~ MUTE output _--l-!i---1!H! r 1, r "'~. PULSE output --I~-II-i!--~/ I II' I, OSCoutput (pin 8) I i I 4KH I I ~~l II Ii II ---t ....... T08 I i !I i I ,I, r+-H'fo------, r---_, I I : I ~ I I I I I: II 1.r 1 I . I 'rin-----~*-- ______ L~+-~---------------------J.nr 110ms On hook r n I TPDP 800ms I I T8 1 TIOP I! I: : I -t H- i ITMC': --tl~rl I I 800ms Normal dialing l/PR I "" Off hook mode I : I II Redial mode Off hook mode • I I I I I. : I I~ _ . Test mode Fig. 2 PIN DESCRIPTIONS 1. Vcc(Pin 1) This is the positive supply pin. The voltage on this pin is measured relative to Pin 6 and is supplied from a 150pA current source. This voltage muS! be regulated to less than 6.0 volts using on external form or regulation. 2. Tone signal outputNREF (Pin 2) Tone signal out pin is CMOS comperementaly output and drive on external bipolar transistor. This pin generates a tone signal when a key is depressed as its recognition. Tone signal frequency is 1KHz when 10pps pulse rate is selected. (the frequency is 2KHz when 20pps pulse rate is selected). Only the pin 2 of KS5605A is VREF (on-chip reference voltage). TYPICAL I-V CHARACTERISTICS The VREF output provides a reference voltage that tracks internal parameters of the KS5805A. VREF provides a negative voltage reference to the Vee supply. Its magnitude will be approximately 0.6 volt greater than the minimum operating voltage of each particular KS5805A 7.0 6.0 S.O The typical application would be to connect the V REF pin to theGND pin (Pin 6). The supply to the Vee pin (Pin 1) should then be regulated to 150pA (lop max). With this amount of supply current, operation of the KS5805A is guaranteed. IREF MA 4.0 3.0 The internal circuit of the VREF function. is shown in Figure 3 with its associated I-V characteristic. 2.0 VREF 1.0 vee c8 1.0 -VREF 2.0 3.0 4.0 5.0 VOLTS SAMSUNG SEMICONDUCTOR Fig. 3 133 CMOS INTEGRATED CIRCUIT KS5805A1KS5805B 3. Keyboard inputs (Pin 3, 4, 5, 13, 14, 15, 16,) The KS5805AIB incorporates an innovative keyboard scheme that allows either the standard 2-of-7 keyboard with negative common or the inexpensive single contact (form A) keyboard to be used. A valied key entry is defined by either a Single row being connected to a single column or GND being sjmutaneously presented to both a Single row and column. When in the on-hook mode, the row and column inputs are held high and no keyboard inputs are accepted. When off-hook, the keyboard is completely static until the initial valid key input is sense<;l. The oscillator is,then enabled and the rows and columns are alternateiy scanned (pulled high, then low) to verify the input is varied. The input must remain valid continuously for 10msec of debounce time to be accepted . • Form A type keyboard • 2 of 7 keyboard (negative common) ------------~ COL -.~---------- ROW ' G~'-----_______'·1. ~ COL ---------------ROW • 2 of 7 keyboard . - - - - - ".±~ COL L-_______----A •• ~ • Electronic input vcc 'H - _.:.__-,-_-_-_..,_u ~-~-~-----. ____________ ROW .vc_c____________, ~!?------------U KEY BOARD CONFIGURATIONS 4. GND (Pin 6) This is the negative supply pin and is connected to the common part in the general applications. 5. OSCILLATOR (Pins 7, 8, 9) The KS5805AIB contains on-chip inverters to provide an oscillator which will operate with a minimum of external components. FollOWing figure shOWS the on-Chip configuration with the necessary external components. Optimum stability occurs with the ratio K=RsIR equal to 10. ' The oscillator period is given by; T=RC (1.386+(3.5KCs)IC-(±KI(K+1» In (K1(1.5K+0.5» Where Cs is the stray capacitance on Pin 7. Accuracy and stability will be enhanced with this capacitance minimized. RS +---U---- ----.-.1 8 C KS5805 AlB ,R c8 SAMSUNG SEMICONDUCTOR , I 134 KS5805AIKS5805B CMOS INTEGRATED CIRCUIT 6. 20/10 pps (Pin 10) Connecting this pin to GND (pin 6) will select an output pulse rate of 10pps. Connecting the pin Vee (pin 1) will select an output pulse rate of 20pps. 7. MAKE/I;IREAK (Pin 11) The MAKE/BREAK pin controls the MAKE/BREAK ratio of the pulse output. The MAKE/BREAK ratio is controlled by con· necting Vee or GND to this pin as shown in the following table. Input Make Break vee (Pin 1) 34% 66% (Pin 6) 40% 60% GND II 8. MUTE OUTPUT (Pin 12) The mute oiJtput is an open-drain N-channel transistor designed to drive an external bipolar transistor. This circuitry is usually used mute the receiver during outpulsing. As shown in Fig. 2 the KS5805 mute output turns on (pulls to the VGNo-supply) at the beginning of the predigital pause and turns off (goes to an open circuit) following the last break. The delay from the end of the last break until the mute output turns off is mute overlap and is specified as tMO. 9. ON-HOOKITEST (Pin 17) The "ON-HOOK" or "Test" input of the KS580SA/B has a 100K{J pull~up to the positive supply. A Vee input or allowing the pin to float sets the circuit in its on-hook or test mode while a VGND input sets it in the off-hook or normal mode. When off-hook the KS5805AIB will accept key inputs and outputs the digits in normal fashion .. Upon completion of the last digit, the oscillator is disabled and the circuit stands by for additional inputs. Switching the KS5805AIB to on-hook while it is outpulsing causes the remaining digits to be outpulsed at 100x the normal rate (M/B ratio is then 50/50). . This feature provides a means of rapidly testing the device and is also on efficient method by which the circuitry is reset. When the outpulsing in this mode, which can take up to 300msec, is completed, the circuit is deactivated and will require only the current necessary to sustain the memory and power-up-clear detect ·ci.rcuitry (refer to the electrical specifications). Upon retuning off-hook, a negative transistion on the mute output will insure the speech network is connected to the line. If the first key entry is either a • or #, the number sequence stored on-Chip will be outpulsed. Any other valid key entrieS will clear the memory and outpulse the new number sequence. 10. PULSE OUTPUT (Pin 18) The pulse output is an open drain N-channel transistor designed to drive on external bipolar transistor. These transistor would normally be used to pulse the telephone line by disconnecting and connecting the network. The KS5805AIB pulse output is an open circuit during make and pulls to the GND supply during break. c8 SAMSUNG SEMICONDUCTOR 135 KS5806(DELETION) . CMOS INTEGRATED CIRCUIT TEN NUMBER REPERTORY DIALER WITH PACIFIER TONE 18 DIP The KS5806 is a monolithic integrated ten-number repertory dialer manufactured using CMOS process. The circuit aCcepts keyboard inputs and provides the pulse and mute logic levels required for loop disconnect signaling. FEATURES o Low-voltage (2 o to 1OV) and low power operation Low memory retention currant of 1II. o Auto-dlals Ten 16 digit-numbers Including Last Number Dialed o o o o o o o o o o (LND) Pacifier Tone Output Osclllstor Selectable In pulse mode (RC or ceramic resonator) Stand-alone pulse dialer PABX pause key Input Last number dialed memory Last number dialed may be copied Into any one of nine other locations. MakelBreak ratio Is pin selectabls in pulse mode Uses slther the Inexpensive Form-A type keyboard or the stan. dard 2·of·7 matrix keyboard with common Gnd Optional use of 13th key Input to control repertory functions in tone mode / Power up circuit Initializes RAM and logic i c8 SAMSUNG SEMICONDUCTOR 136 CMOS "INTEGRATED CIRCUIT KS5806 (DELETION) BLOCK DIAGRAM vee 18 J5UiM!113 KEY STATIC CMOS RAM DIGITDEMUX }---------------~10r_--------~ HKS GND PACIFIER TONE DESCRIPTION The KS580S is a ten-number repertory dialer manufactured using silicon Gate CMOS process. Pin 2, the "Mode select" input determines whether "signaling will be pulse or tone. The interpretation of several inputs and outputs is dependent upon the mOde selected. . In the pulse mode the time base for the circuit is selectable between a ceramic resonator and RC oscillator. In tone mode the circuit can· only use the RC oscillator. An on chip RAM is capable of storing ten 1S-digit telephone numbers including the laSt number dialed. When used in a PABX system, a pause (# key) may be stored in the number sequence. The repertory dialer will recognize this pause when automatically dialing and stop until another key input is received. ciS SAMSUNG SEMICONDUCTOR 137 II KS5806 (DELETION) 'CMOS INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta =25°C) Caracteristic DC Supply Voltage Maximum Power Dissipation (25°C) Maximum Voltage on Any Pin Operating Temperature Storage Temperatu're Symbol Unit value 10.5 500 Vee-l;O.3, GND-0.3 -30-60 -55-125 Vee Po Y,N Topr Tstg . V mW V °C °C DC ELECTRICAL CHARACTERISTICS (Ta =25°C) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage' Vee 10.0 'V Operating Current (Tone)2 lop Vee=2.5V 50 100 pA Operating Current (Pulse)2 lop Vee=2.5V 100 200 pA Standby Current (Vee =2,5V)3 ISB No load 1.0 2.0 pA Memory Retention Current' 1.0 pA. 2.0 IMR 0.3 Memory Retention Voltage' VMR 1.3 1.5 V Mute Sink CUffent' IML 0.5 2.0 mA mA Vee=2.5V, Vo=0.5V Pulse Sink Current' Ip Vee=2.5V, Vo=0.5V 1.0 4.0 Pacifier Tone Source/Sink' IPT Source Vo =2.OV 200 500 Mute and Pulse leakageS ILKG Vo=10V 0.001 pA 1.0 pA. Key Contact Resistance6 RKI 1.0 KG Keyboard Capacitance 6 CKI 30 pF "0" LOgic Level K,L ' GND 0.2Vee V "I" Logic Level K'H 0.8 Vee Vee Keyboard Pull Up7 KRu Keyboard Pull Down 7 KRo CNT Pull Up (Pin 11)8 ReNT Tone mode only V 100 KG 1.0 KG 100 KG Notes: 1. The memory will be retained at a lower voltage level than that required for circuit operation. If either IMR or VMR is maintained the memory contents will not be cleared. 2. Operating current with a valid key input at 2.5 volts. 3 .. Standby current on hook or off hook with all inputs unloaded. 4. For V+ =2.5, Sink Vo =0.5 Volts, Source Vo =2.0 volts. 5. Leakage with V+, Vo=10.0 Volts 6. Keyb9ard contact resistance and parasitic capacitance, maximum values., . _ . 7. Keyboard 110 pins will scan 250 Hz with oscillator enabled pulse mode and dunng DD I"'tone mode. 8. Tone mode only. c8 SAMSUNG SEMICONDUCTOR 138 KS5806 (DELETION) CMOS INTEGRATED CIRCUIT AC ELECTRICAL CHARACTERISTICS (Ta=25°C) Characteristic Symbol Min Typ Oscillator (Cer, Res)' FCR 480 Oscillator (RC)2 FRe 8 Oscillator Stability" tlFRc Debounce Time4 Toe Valid Key Down Time Oscillator Start -3 Unit 16 KHz KHz +3 % mS 32 40 TKO Up Time Max mS 8 Tos mS Key Rollover OVLP Time 5 TRoL Pulse Rate PR 10 Break Time (Pin 11 VedGND) Te 60/68 mS Predigital Pause Times Tpop 170 mS Mute Overlap Time TMoL 2 mS Tone Rate TR 5 TPS mS 4 mS PPS Pacifier ToneBurst Time7 TPT 28 Pacifier Tone Frequency· FPT 500 Hz Interdigital Pause Time T,op 940 mS Notes: 1. Ceramic Resonator should 'have the tOtlowing equivalent values: R<20 Ohms. RA >70k Ohms, Co < 500pF. 2. The RC values chosen determine frequency. The nominal frequency is 8kHz. To accelerate dialing the frequency may be increased to twice the nominal value. This would double signalling rate and half most timing specifications. 3. Voltage range of 2.5 to 6.0 volts, over temperature, and unit to unit variations. 4. Key entry must be present after 32 ms to be valid. 5. Rollover is the time key inputs must be invalid for successive entries to be recognized. 6. Time from initial key input till first break or tone output. 7. Tone burst will terminate if key released before 28 ms. 8. This is a square wave output. PIN CONNECTION vee - - 1 - '- MOOE--. 2 --HKS COL1-- 3 Ccii2'-- 4 COi:3-- 5 PUL5E113KEY --R0W2 KS5800 --R0W3 --i'IOWI OSC/RC-- 7 11 - - MB/CNTI. OSC SELECT - - c8 9 SAMSUNG SEMICONDUCTOR - - PACIFIER lONE 139 CMOS INTEGRATED CIRCUIT KS5806 (DELETION) PIN DESCRIPTION 1. VccCPln 1) Pin 1 is the positive supply input to the part and is measured relative to GND (pin 6). The voltage on this pin should not el«:eed 10 VoIIS. On chip Zener diodes will provide protection from supply transients In most applications. Alow voltage detect circuit will perform a power up initialization whenever the supply voltage at thi!; pin falls below a level necessary to guarantee proper circuit operation. 2. Mode (Pin 2) The KS5806will function In either tone or pulse mode, dependent upon the logic level presented to pin 2. For pulse mode operation, this pin must be tied to GND (pin 6). For tone mode, it should be tied to Vee (pin 1). The interpretation of pins 7,8;11,12, and 18 are dependent upon the mode selected. 3. Keyboard Inputs (Pins 3, 4, 5, 13, 14, 15; 16) The KS5806 incorporates a keyboard scheme that allows either the standard 2-of-7 keyboard with negative common or ' the inexpensive single-contact (Form A) keyboard to be used, as shown in Fig. 1. A valid key entry is defined by either a single row being connected to single column or V - being simultaneously presented to both a single row and column. In the tone mode, the KS5806 features a bidirectional keyboard scheme. As the KS5806 passively monitors the key inputs , (using the scan provided by the tone dialer), they are debounced, decoded, and stored in the on chip LND (last Number Dialed) buffer. The keyboard inputs in tone mode are normally high impedance allowing the tone chip to scan the keyboard lines and begin signaling immediately upon detecting a key entry. A command key entry disables the tone chip and scanning is then controlled by the repertory dialer until the key is released. In tone mode auto- -10p.A 4.1 Voc·O.1 10H = - 400p.A 4.1 10H:!> -10p.A Vee·0.1 IOH=1.6mA - 0.8' V 2.5 p.A 10 p.A - V 0.4 V 181 I CMOS INTERGRATED CIRCUIT KS5824 DC CHARACTERISTICS (Continued) Characteristic Output leakage (Off State) Cur~ent C~nditlons Symbol Test ILOH VOH=VCC CIN VIN=OV, Ta=25°C, f=1.0MHz COUT V,N =OV:Ta=25°C f=1.0MHz IRQ Input Capacitance Output Capacitance RTS, Tx Dat~ iRa - 10 - 12.5 - - 7.5 - E= 1.0MHz - E= 1.5MHz E=2.0MHz E=1.0MHz • Under transmitting and receiving operation • 500 kbps • Data bus in Rm operation Supply Current E=1.5MHz E=2.0MHz • Chip is not selected .500 kbps • Under non transmitting and receiving operation • Input level (Except E) VIH min = Vcc - 0.8V VIL max = 0.8V Icc Typ Max Unit ,- 0 0 -0 7 E, Tx ClK, Rx ClK, Rm, RS, Rx Data, CSo, CS" CS2, CTS, DCD Min 10 5.0 pA pF pF 3 4 - 5 - 200 - - 250 - - 300 mA p.A AC CHARACTERISTICS (Vcc=5.0V±5%,Vss =OV, Ta= -20-+75°C, unless otherwise noted.) 1. TIMING OF DATA TRANSMISSION Characteristic Symbol Test Conditions PWCL Fig. 1 +1 Mode Minimum Clock Pulse Width , +16, +64 Modes +1 Mode +16, +64 Modes Clock Frequency +1 Mode + 16, + 64 Modes Min ,900 PWCH Fig. 2 fc 600 900 600 ns ns ns ns KHz 800 KHz - 600 ns - ns 1200 ns trOD Receive Data Setup Time +1 Mode tRoSU Fig. 4 250 Receive Data Hold Time +1 Mode tRoH Fig. 5 250 IRQ Release Time tlR Fig. 6 i1fS Delay Time tRTS Fig. 6 - t" tl 500 Fig. 3 Except E Unit - Clock-to-Data Delay for Transmitter Rise Time and Fall Time Max ns 560 ns 1000' ns • 1.0p.s or 1Q% of the pulse width, whichever is smaller. c8 SAMSUNG SEMICONDUCTOR 182 KS5824 CMOS INTERGRATED CIRCUIT 2. BUS TIMING CHARACTERISTICS 1) READ Characteristic Symbol Test Conditions Min Max Unit - ns Enable Cycle Time teycE Fig. 7 Enable :'High" Pulse Width PweH Fig. 7 1000 450 Enable "Low" Pulse Width PWEL Fig. 7 430 Setup Time, Address and 'Rm Valid to Enable Positive Transition tAS Fig. 7 80 ns ns ns I Data Delay Time tOOR Fig. 7 - tli Fig. 7 20 290 100 ns Data Hold Time Address Hold Time tAH Fig. 7 10 - ns te" te, Fig. 7 - 25 ns Symbol Test Conditions Min Max Unit ·Enable Cycle Time teyeE Fig. 8 1000 PWEH Fig. 8 - ns Enable "High" Pulse Width Enable "Low" Pulse Width """"' ns ns ns Rise and Fall Time for Enable Input ns 2) WRITE Characteristic PWEL Fig. 8 450 430 Setup Time, Address and RIW Valid to Enable Positive Transition tAS Fig. 8 80 Data Setup Time tosw Fig. 8 165 Data Hold Time tH Fig. 8 tAH Fig. 8 10 10 - tE" te, Fig. 8 - 25 Address Hold Time Rise and Fall Time for Enable Input PWCL Tx ClK OA Ax ClK Tx elK OA Ax ClK ns ns ns ns 2.2V o.sv PWCH • Tx elK Is V'H=2.0V Fig. 1 Clock Pulse Width, "Low" State Fig. 2 Clock Pulse Width, "High" State Tx elK Ax DATA Vcc-2.0V O.4V Fig. 3 Transmit Data Output Delay c8 SAMSUNG SEMICONDUCTOR Ax elK _ _ _-'I Fig. 4 Receive Data Setup Time (+ 1 Mode) 183 ·KS5824 CMOS INTERGRATED CIRCUIT ENABLE Rx ClK Vcc- 2.OV O.4V . i----tcycE----I ENABLE RS.CS.RIW -FV;; iRCl _ _ _ _ _ _ _ _ _ _ _ _~/:...2.0V Fig. 5 Receive Data Hold Time ( ... 1 Mode) •. (1) i'RCi Release Time applied to Rx Data Register read operation. (2) IRQ Release Time applied to Tx Data Register write ope~ation (3) IRQ Release Time applied to control Register write TIl: = 0, RIE = 0 operation. •• IRQ Release Time applied to Rx Data Register read operation right after read status register, when IRQ is asserted by DCD rising edge. Note: Note that following take place when IRQ is asserted by the detection of transmit data register empty status. IRQ is released to "High" asynchronously with E signal when CTS goes "High". (Refer to Figure 14) DATA BUS Fig. 6 Fig. 7 Bus Read Timing Characteristics (Read information from UARn lOAD A (00-07. f----tcycE - - - - - I PWEH m Delay and i1m Release Time (~~=1\Y)'5.0V RiS. Tx DATA) RL =2.4KIl 3KIl TEST POINT TEST POINT c c= 130pF for 00-07 = 30pF for FITS and.IlLData R 10KIl for 00-07. RTS and Tx Data All diodes are lS2074@or Equivalent. r" = Fig. 8 Bus Write Timing Characteristics (Write information into UARn c8SAMSUNG SEMICONDUCTOR Fig. 9 Bus Timing Test Loads 184 KS5824 CMOS INTERGRATED CIRCUIT START BIT DO 01 02 f---------- 03 04 05 06 PARITY BIT STOP BIT STOP BIT II CHARACTER TIME @10CPS (11 BITS) 1 0 0 m s e c - - - - - - - - - - - i Fig. 10 110 Baud Serial ASCII Data Timing TRANSMIT CLOCK 4 ENABLE 14 READIWRITE CHIP SELECT 0 CHIP SELECT 1 CHIP SELECT 2 13 8 10 9 REGISTER SELECT 11- CHIP SELECT AND READI WRITE CONTROL TRANSMIT DATA REGISTER 6 TRANSMIT DATA ·24 CLEAR TO SEND DO 22 01 21 02 20 03 19 04 18 05 17 06 16 07 15 STATUS REGISTER 7 INTERRUPT REQUEST DATA BUS BUFFERS 23 DATA CARRIER DETECT 5 REQUEST TO SEND . CONTROL REGISTER RECEIVE· DATA REGISTER Vcc=Pin 12 Vss=Pin 1 RECEIVE CLOCK 3 RECEIVE SHIFT REGISTER 1------+-- 2 ~!~!IVE -------------------t....::.~.:...J Fig. 11 Expanded Block Diagram c8 , SAM$UNG SEMICONDUCTOR 185 KS5824 CMOS INTERGRATED CIRCUIT DEVICE OPERATION transmitted (because of double buffering). The second character will be automatically transferred into the Shift Register when ·the first character transmission is completed. This sequence continues until all the characters have been transmitted. At the bus interfl[lCe, the UART appears as two addressable memory locations. Internally, there are four registers: two read-only and two write-only registers. The read-only registers are Status and Receive Data; the write-only registers are Control and Transmit Data. The serial interface consists of serial input and output lines with independent clocks, and three peripheral/modem control lines. POWER ON/MASTER RESET The master reset (CRO, CR1) should be set during system initialization to insure the reset condition and prepare for' programming the UART functional configuration when the communications channel is required. During the first master reset, the IRQ and RTS outputs are held at level 1. On all other master resets, the RTS output can be programmed high or low with the IRQ output held high. Control bits CR5 and CR6 should also be programmed to define the state of RTS whenever master reset is utilized. The UARTalso cQntains internal power-on reset logic to detect the power line turn-on transition and hold the chip in a reset state to prevent 'erroneous output transitions prior to initialization. This circuitry depends on clean power turn-on tranSitions. The power-on reset is released by means of the busprogrammed master reset which must be applied prior to operating the UART. After master resetting the UART, the programmable Control Register can be set for a number of options such as variable clock divider ratios, variable word length, one or two stop bits, parity (even, odd, or none), etc. TRANSMIT A typical transmitting sequence consists of reading the UART. Status Register either as a result of an interrupt or in the UART's turn in a polling sequence. A character may be written into the Transmit Data Register if the status read operation has indicated that the Transmit Data Register is empty. This character is transferred to a Shift Register where it is serialized and transmitted from the Transmit Data output preceded by a start bit. and followed by one or two stop bits. Intemal parity (odd or even) can be optionally added to the character and will occur between the last data bit and the first stop bit. After the first character is written in the Data Register, the Status Register can be read again to check for a Transmit Data Register Empty condition and current peripheral status. If the register is empty, another character can be loaded for transmission even though the first character is in the process of being c8 SAMSUNG SEMICONDUCTOR' RECEIVE Data is received from a peripheral by means of the Receive Data input. A divide-by-one clock ratio is provided for an extemally synchronized clock (to its data) while the divid-by-16 and 64 ratios are provided for internal synchronization. Bit synchronization in the divide-by-16 and 64 modes is initiated by the detection of B or 32 low samples on the receive .Iine in the divideby-16 and 64 modes respectively. False start bit deletion capability insures that a full half bit of a start bit has been received before the internal clock is synchronized to the bit time. As a character is being received, parity (odd or even) will be checked and the error indication will be available in the Status Register along with framing error, overrun error, and Receive Data Register full. In a typical receiving sequence, the Status Register is read to determine if a character has been received from a peripheral. If the Receiver Data Register is full, the character is placed on the B-bit UART bus when a Read Data command is received from the MPU. When parity has been selected for a 7-bit word (7 bits plus parity), the receiver strips the parity bit (07 0) so that" data alone ia transferred to the MPU. This feature reduces MPU programming. The Status Register can continue to be read to determine when another character is available in the Receive Data Register. The receiver is also double buffered so that a character can be read from 'the data register as another character is being received in the shift register. The above sequence continues u'ntil all characters have been received. = INPUT/OUTPUT FUNCTIONS UART INTERFACE SIGNALS FOR MPU The KS5B24 interfaces to the MPU with an B-bit bidirectional data bus, three chip select lines, a register select line, an interrupt request line, read/write line, and enable line. These signals permit the MPU to have complete control over the KS5824. UART Bidirectional Data (00-07) - The bidirectional data lines (00-07) allow for data transfer between the KS5B24 and the MPU. The data bus output drivers are three-state devices that remain in the high-impedance (off) state except wh~n the MPU performs an UART read operation. .186 KS5824 CMOS INTERGRATED CIRCUIT UART Enable (E) - The Enable signal, E, is a highimpedance TTL-compatible input that enables the bus input/output data buffers and clocks data to and from the KS5824. reading data or resetting the UART. Interrupts caused by Overrun or loss of DCD are cleared by reading the status register after the error condition has occurred and then reading the Receive Data Register or resetting the UART. The receiver interrupt is masked by resetting the Receiver Interrupt Enable. ReadlWrite (R/W) - The ReadlWrite line is a highimpedance input that is TTL compatible and is used to control the direction of data flow through the UART's input/output data bus interface. When ReadlWrite is high (MPU Read cycle), KS5824 output drivers are tumed on and a selected register is read. When it is low, the KS5824 output drivers are turned off and the MPU writes into a selected register. Therefore, the ReadlWrite signal is used to select read-only or write-only registers within the KS5824. Chip Select (CSO, CS1, CS2) - These three highimpedance TTL-compatible input lines are used to address the KS5824. The KS5824 is selected when CSO and CS1 are high and CS2 is low. Transfers of ,data to and from the KS5824, are then performed under the , control of the Enable Signal, ReadlWrite, and Register Select. Register Select (RS) - The Register Select line is a high-impedance input that is TTL compatible. A high level is used to select the Transmit/Receive Data Registers and a low level the Control/Status Registers. The ReadlWrite signal line is used in conjunction with Register Select to select the read-only or write-only register in each register pair. Interrupt Request (IRQ) - Interrupt Request is a TTLcompatible, open-drain (no internal pull up), active low output that is used to interrupt the MPU. The IRQ output remains low as long as the cause of the interrupt is present and the appropriate interrupt enable within the UART is set. The IRQ status bit, when high, indicates the IRQ output is in the active state. Interrupts result from conditions in both the transmitter and receiver sections of the UART. The transmitter section causes an interrupt when the Transmitter Interrupt Enabled condition is selected (CR5 o CR6), and the Transmit Data Register Empty (TORE) status bit is high. The TORE status bit indicates the current status of the Transmitter Data Register except when inhibited by Clear-to-Send (CTS) being high or the UART being maintained in the Reset condition. The interrupt is cleared by writing data into the Transmit Data Register. The interrupt is masked by disabling the Transmitter Interrupt via CR5 or CR6 or by the loss of CTS which inhibits the TORE status bit. The Receiver section causes an interrupt when the Receiver Interrupt , Enable is set and the Receive Data Register Full (RDRF)' status bit is high, an Overrun has occurred, or Data Carrier Detect (DCD) has gone high. An interrupt resulting from the RDRF status bit can be cleared by c8 SAMSUNG SEMICONDUCTOR CLOCK INPUTS Separate high-impedance TTL-compatible inputs are provided for clocking of transmitted and received data. Ciock frequencies of 1, 16, or 64 times the data rate may be selected. Transmit Clock (Tx ClK) -The Transmit Clock input is used for the clocking of transmitted data. The transmitter initiates data on the negative transition of the clock. Receive Clock (Rx ClK) - The Receive Clock input is used for synchronization of received data (In the + 1 mode, the clock and data must be synchronized extemally.) The receiver samples the data on the positive trans,ition of the clock. SERIAL INPUT/OUTPUT LINES Receive Data (Rx Data) - The Receive Data line is a high-impedance TTL-compatible input through which data is received in a serial format. Synchronization with a clock for detection of data Is accompiished internally when clock rates of 16 or 64 times the bit rate are used. Transmit Data (Tx Data) - The Transmit Data output line transfers serial data to a modem or other peripheral. PERIPHERAUMODEM CONTROL The UART includes several functions that permit limited control of a peripheral or modem. The functions included are Clear-to-Send, Request-to-Send and Data Carrier Detect. Clear-ta-Sand (CTS) - This high-impedance TTLcompatible input provides automatic control of the transmitting end of a communications link via the modem Clear-to-Send active low output by inhibiting the Transmit Data Register Empty (TORE) status bit. Request:to-Sand (RTS) - The Request-to-Send output enables the MPU to control a peripheral or modem via the data bus. The FITS; output corresponds to the state of the Control Register bits CR5 and CR6. When CR6 = 0 or both CR5 and CR6 1, the RTS output is low (the active state). This output can also be used for Data Terminal Ready (DTR). = 187 II KS5824 CMOS INTERGRATED CIRCUIT Data Carrier Detect (!)CO) - This high-impedance TIl-compatible input provides automatic control, such as in the receiving end of a communications link by means of a m9dem Data Carrier Detect output. The DCD ' input rnhibits and initializes the receiver section of the UART when high. A low-to-high transition of the Data Carrier Detect initiates an interrupt to the MPU to indicate the occurrence of a loss of carrier when the Receive Interrupt Enable bit is set. The Rx ClK must be running for proper DCD operation. character is being transmitted, then the transfer will take place within 1-bit time of the training edge of the Write command. If a character is being transmitted, the new data character will commence as soon as the previous character is complete. The transfer of data causes the Transmit Data Register Empty (TORE) bit to indicate empty. RECEIVE DATA REGISTER (RDR) Data is automatically transferred to the empty Receive 'Data Register (RDR) from the receiver deserializer (a shift register) upon receiving a complete character. This event causes the Receive Data Register Full bit (RDJ:lF) in the status buffer to go high (full). Data may then be read through the bus by addressing the UART and selecting the Receive Data Register with RS and RIW high when the UART is enabled. The non-destructive read cycle causes the RDRF bit to be cleared to empty although the data is retained in the RDA. The status is maintained by RDRF as to whether or not the data is current. When the Receive Data, Register is full, the ' automatic transfer of data from the Receiver Shift Register to the Data Register is inhibited and the RDR contents remain valid with its current status stored in the Status Register. UART REGISTERS The expanded block diagram for the UART indicateS the Internal registers on the chip that are used for the status, control, receiving, and'transmitting of data ThEi content of each of the registers is summarized in Table 1. TRANSMIT DATA REGISTER (TOR) Data is written in the Transmit Data Register during the negative transition of the enable (E) when the UART has been addressed with RS high and RiW low. Writing data into the register caul$es the Transmit Data Register Empty bit in the Status Register to go low. Data can then I:;le transmitted. If the transmitter is idling and no DEFINITION OF UART REGISTER CONTENTS Buffer Address RS. RiW Transmit Data Register RS. RIW Receive Data Register (Write Only) 0 Data Bus Line Number RS. iWi RS. RiW Control Register Status Register (Read Only) (Write Only) (Read Only) Data Bit 0' Data Bit 0 Counter Divide Select ,1 (CR1) Receive Data Register Full (RDRF) 1 Data Bit 1 Data Bit 1 Counter Divide Select 2 (CR1) Transmit Data Register Empty (TORE) 2 Data Bit 2 Data Bit 2 Word Select 1 (CR2) Data Carrier Detect (DCD) 3 Data Bit 3 Data Bit 3, Word Select 2 (CR3) Clear-to-Send (CTS) 4 Data Bit 4 Data Bit 4 Word Select 3 (CR4) Framing Error (FE) 5 Data Bit 5 Data Bit 5 Transmit Control 1 (CR5) Receiver Overrun (OVRN) 6 Data Bit 6 Data Bit 6 Transmit Control 2 (CR6) Parity Error (PE) 7 Data Bit 7'" Receive Interrupt Enable (CR7) Interrupt Request (IRQ) Data Bit 7" • leadmg bit = lSB = Bit 0 " Data bit will be zero in 7 bit plus parity modes , •• Data bit is "don't care" in 7 bit plus parity modes. c8 SAMSUNG SEMICONDUCTOR 188 KS5824 CMOS INTERGRATED CIRCUIT CONTROL REGISTER The UART Control Register consists of eight bits of write-only buffer that are selected when RS and R/W are low. This register controls the function of the receiver, transmitter, interrupt enables, and the Request-to-Send peripheral/modem control output. Counter Divide Select Bits (CRG and CR1) - The Counter Divide Select Bits (CRO and CR1) determine the divide ratios utilized in both the transmitter and receiver sections of the UART. Additionally, these bits are used to provide a master reset for the UART which clears the Status Register (except for external conditions on CTS and DC D) and initializes both the receiver and transmitter. Master reset does not affect other Control Register bits. Note that after power-on or a power fail/restart, these bits must be set high to reset the UART. After resetting, the clock divide ratio may be selected. These counter select bits provide for the follo~ing clock divide ratios: CR1 CRO Function 0 0 1 1 0 1 0 1 +1 +16 +64 Master Reset Word Select Bits (CR2, CR3, and CR4) - The Word Select bits are used to select word length, parity, and the number of stop bits. The encoding format is as follows; Function CR4 CR3 CR2 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 7 7 7 7 8 8 8 8 Bits + Even Parity + 2 Stop Bits Bits + Odd Parity + 2 Stop Bits Bits + Even Parity + 1 Stop Bit Bits Odd Parity +1 Stop Bit Bits + 2 Stop Bits Bits + 1 Stop Bit Bits + Even Parity + 1 Stop Bit Bits + Odd Parity + 1 Stop Bit· +. Word length, Parity Select, and Stop Bit changes are not buffered and therefore become effective immediately. Transmitter Control Bits (CRS and CR6) - Two Transmitter Control bits provide for the control of the interrupt from the Transmit Data Register Empty condition, the Request-to-Send (RTS) output, and the· transmission of a Break level (space). The following encoding format is used: . c8 SAMSUNG SEMICONDUCTOR CR6 CRS 0 0 0 1 1 0 1 1 Function = = = = RTS low, Transmitting interrupt Disabled. RTS low, Transmitting Interrupt Enabled. RTS high, Transmitting Interrupt Disabled. RTS low, Transmits Break level on the Transmit Data Output. Transmitting Interrupt Disabled. Receive Interrupt Enable Bit (CR7) - The following interrupts will be enabled by a high level in bit position 7 of the Control Register (CR?): Receive Data Register Full Overrun or a low·to-high transition on the Data Carrier Detect (DCD) signal line. STATUS REGISTER Information on the status of the UART is available to the MPU by reading the UART Status Register. This readonly register is selected when RS is low and RiW is high. Information stored in this register indicates the status of the Transmit Data Register, the Receive Data Register and error logic, and the peripheral/modem status inputs of the UART. Receive Data Register Full (RDRF), Bit 0 - Receive Data Register Full indicates that received data has been transferred to the Receive Data Register. RDRF is cleared after an MPU read of the Receive Data. Register or by a master reset. The cleared or empty state indicates that the contents of the Receive Data Register are not current. Data Carrier Detect being high also causes RDRF to indicate empty. Transmit Qata Register Empty (TORE), Bit 1 - The Transmit Data Register Empty bit being set high indicates that the Transmit Data Register contents have been transferred and that new data may be entered. The low state indicates that the register is full and that transmission of a new character has not begun since the last write data command. Data Carrler'Detect (DCD), Bit 2 - The Data Carrier Detect bit will be high when the DCD input from a modem has gone high to indicate that a carrier is not present. This bit going high causes and Interrupt Request to be generated when the Reoeive Interrupt Enable is set. It remains high after the DCD input is returned low until cleared by first reading the Status Register and then the Data Register or until a master reset occurs. If the DCD input remains high after read 189 II < KS5824 CMOS INTERGRATED CIRCUIT status and read data or master reset has occurred, the interrupt is cleared, the DCD status bit remains high and will follow the DCD Input. in succession without a read of the RDR having occurred. The Overrun does not occur in the Status Register until the valid character prior to Overrun has been read. The RDRF bit remains set until the Overrun is reset. Character synchronization is mai~tained during the Overrun condition. The Overrun indication is reset after the reading of data from the Receive Data Register or by a Master Reset. Clear·to-5end"(CTS), Bit 3 - The Clear·to-Send bit indicates the state of the Clear·to-Send input from a modem. A low CfS indicates that there is a Clear·toSend from the mod~m. In the high state, the Transmit Qata Register Empty bit Is inhibited and the Clear·toSend status bit will be high. Master reset does not affect the Clear·to-Send status bit. Framing Error (FE), Bit 4 - Framing error Indicates that the received character is Improperly' framed by a start and a stop bit and is detected by the absence of the first stop bit. This error indlcate"s a synchronization error, faulty transmission, or a break condition. The framing error flag Is set or reset during the receive data transfer time. Therefore, this error indicator is present throughout the time that the associated character is available. Receiver Overrun (OVRN), Bit 5 - Overrun is an error flag the indicates that one or more characters in the data stream were lost. That is, a character or a number of characters were received but not read from the Receive Data Register (RDR) prior to subsequent characters being received. The overrun condition begins at the" midpoint of the last bit of the second character received c8 SAMSUNG SEMICONDUCTOR Parity Error(PE), Bit 6 - The parity error flag indicates that the number of highs (ones) in the character does not agree with the preselected odd or even parity. Odd parity is defined to be when the total number of ones is odd. The parity error indication will be present as long as the data character Is in the RDR. If no parity is selected, then both the transmitter parity generator output and the receiver parity check results are inhibited. Interrupt Request (IRQ), Bit 7 - The IRQ bit indicates the state of the IRQ output. Any interrupt condition with its applicable enable will be indicated in this status bit. Anytime the IRQ output is low the IRQ bit will be high to indicate the interrupt or service request status. IRQ is cleared by a read operation to the Receive Qata Register or a write operation to the Transmit Data Register. 190 KT3040J CMOS INTEGRATED CIRCUIT PCM MONOLITHIC FILTER. The KT3040J filter is a monolithic circuit containing both transmit and receive filters specifically designed for PCM CODEC filtering applications in 8KHz sampled systems .. 16 CERDIP The filter is manufactured using double-poly Si-Gate CMOS technology. Switched capacitor integrators are used to simulate classical LC ladder filters which exhibit low component sensitivity. Transmit Filter Stage The transmit filter is a fifth order elliptic low pass filter in series with a fourth order Chebyshev high pass filter. It provides a flat response in the passband and rejection of signals below 200Hz and above 3.4KHz. II Receive Filter Stage The receive filter is a fifth order elliptic lowpass filter designed to reconstruct the voice signal from the decoded/demultiplexed signal which, as a result of the sampling process, is a stair-step signal havirig the inherent sin XiX frequency response. The receive filter approximates the function required to compensate for the degraded frequency response and restore the flat passband response. FEATURES • Exceeds all 03/04 and CCITT specifications • + 5V, - 5V power supplies ' • Low power consumption: 45mW (0 dBmO into 6000) 30mW (power amps disabled) • Power down mode: 0_5mW • 20 dB gain adjust range • No extemal anti-aliasing components • Sin xix correction In receive filter • 5OI6OHz rejection in transmit filter • TTL and CMOS compatible logic • All inputs protected against static discharge due to handling c8 SAMSUNG SEMICONDUCT()R 191 CMOS INTEGRATED CIRCUIT KT3040J BLOCK DIAGRAM PDN GNDA ' GNDD PWRI Vee CLK CLKO VFXO GSx Fig. 1 PIN CONFIGURATION GNDA CLKO PDN KT3040J ~~ VFRI 9J Vee ABSOLUTE MAXIMUM RATINGS Symbol Value Supply Voltages Vs ±7 V Power Dissipation Po 1 W/PKG Input Voltage VIN ±7 V Continuous sec + 125 -65 to + 150 ·C Chllracterlstlcs Output Short-Circuit Duration Ts.e OUT Operating Temperature Range Ta Storage Temperature T.'g TL Lead Temperature (Soldering 10 seconds) c8 SAMSUNG SEMICONDUCTOR -25 to 300 Unit ·C ·C 192 CMOS INTEGRATED CIRCUIT KT3040J DC ELECTRICAL CHARACTERISTICS (Unless otherwise noted, Ta = O·C to 70·C, Vee = + 5.0V ± 5%, Vee = - 5.0V ± 5%, clock frequency is 2.048MHz. Typical parameters are specified at Ta= 25·C, Vee = +5.0V, Vee = - 5.0V, digital interface voltages measured with respect to digital ground, GNDD. Analog voltages measured with respect to analog ground, GNDA.) Characteristic Synibol Test Condition Min Typ Max Unit Power Dissipation Vee Standby Current leeo PDN=Voo 400 ".A Vee Standby Current leBO PDN=Voo 400 p.A Vee Operating Current leel PWRI = Vee, Power Amp Inactive 3.0 .4.0 mA Vee Operating Current 'l ee1 PWRI = Vee, Power Amp Inactive 3.0 4.0 mA Vee Operating Current lee2 (Note 1) 4.6 6.4 mA Vee Operating Current leB2 (Note 1) 4.6 6.4 mA Input Current, CLK liNe VeeSVINSVee -10 10 ".A Input Current, PDN IINP VeeSVINSVee -100 Input Current, CLKO IINo VeeSVINSVee - 0.5V -10 -0.1 ".A 0.8 V Vee V Digital Interface Input Low Voltage, CLK, PDN ".A Vil 0 Input High Voltage, CLK, PDN VIH 2.2 Input Low Voltage, CLKO VllO Vee Input Intermediate Voltage, CLKO VIIO -0.8 0,8 V Input High Voltage, CLKO VIHO Vee·0.5 Vee V VeeSVFxlSVee -100 100 VeeSVFxlSVee 10 Vee+ 0.5 ' V Transmit Input OP Amp Input Leakage Current, VFXI lexl Input ReSistance, VFXI Rixi Input Offset Voltage, VFXI VOSXI Common Mode Range, VFXI VCM Common Mode Rejection Ratio CMRR Power Supply Rejection of Vee or Vee PSRR Open Loop Output Resistance, ·Gsx -2.5VSVINS +2.5V -2.5VsVINS +2.5V -20 20 -2.5 2.5 80 Minimum Load ReSistance, Gsx Rl Maximum Load Capacitance, Gsx Cl ±2.5 Open Loop Voltage Gain, Gsx Avol Rl~10K 5\000. c8 Fc SAMSUNG SEMICONDUCTOR KIl 100 Rl~10K Open Loop Unity Gain Bandwidth, Gsx KIl 10 VOXI V dB 1 Output Voltage Swing, Gsx mV dB 60 ROl nA Mil pF V VN 2 MHz 193 I KT3040J CMOS INTEGRATED CIRCUIT AC ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta = 25°C. All parameters are specified for a signal level of OdBmO at 1KHz. The OdBmO level is assumed to be 1.54 Vrms measured at the output, of the transmit or receive filter.) Symbol Characterlst.ic Min Test Condition Typ Max Unit TRANSMIT FILTER (Transmit filter input OP amp set to the non-Inverting unity gain mode, with V,xl-1.09 Vrme unless otherwise noted.) Minimum Load Resistance, V,xo RLX Load Capacitance, V,xo CLX Output Resistance, V,xo - 2.5V < VOUT <2.5V 3 KO -3.2V O,1~F I 600 I 8 VFXI VFXO I DIGITAl. OUTPUT 50K I KT5116 KT3040J I I I GNDA PWAO- I I I VFA1 60011 I 10 12 13 VFAO O,1~F I 50K DIGITAL INPUT L-------'--~ Fig. 2 Note 1: Transmit voltage gain Note 2: Receive Gai n =R';2 R2 x v'2 (The filter itself introduces a 3dB gain), (R, + R2~ HiK) =R3+R4R4 (R3 + R4 ~ 10K) Note 3: In the configuration shown, the receive filter amplifiers will drive a 6000 T to R tennination to a maximum signal level of B.5dBm. An alternative arrangement, using a transformer winding ratio equivalent to 1.414:1 and 3000 lesistor, Rs, will provide a maximum signal level of 10.1dBm across a 6000 termination impedance. Gain Adjust Fig. 2 shows the signal path interconnections between the KT3040 and KT5116 single-channel CODEC. The trans!11it RC coupling components have been chosen both for minimum passband droop and to present the correct impedance to the CODEC during sampling. ' . Optimum noise and distortion perfonnance will be obtained from the KT3040 filter when operated with system peak overload voltages of ±2.5 to ±3.2V at VFXO and VFAO• When interfacing to a PCM CODEC with a peak ' overload voltage outside this range, further gain or attenuation may be required. For example, the KT3040 filter can be used with the KT3000 series CODEC which has a 5.5V peak overload voltage. A gain stage following the transmit filter output and an attenuation stage following the CODEC output are required. Board Layout Care must be taken in PCB,layout to minimize power supply and ground noise. Analog ground (GNDA) of each filter should be connected to digital ground (GNDD) at a single point, which should be bypassed to both power supplies. Further power supply decoupling adjacent to each filter and CODEC is recommended. Ground loops should be avoided, both between GNDA and GNPD a~d between the 'GNDA traces of adjacent filters and CODECs. c8 SAMSUNG SEMICONDUCTOR 199 I KT3054J COMBO CODEC· CMOS INTEGRATED CIRCUIT 18 CERDIP The KT3054 consists of ,..Iaw· monolithic PCM CODEC/FILTERS utilizing the AID and DIA conversion and a serial PCM interface. The devices are fabricated using double-poly CMOS process C/£-process). The encode portion of each device consists of an input gain adjust amplifier, an active RC prefilter which eliminatesNery high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200Hz and above 3.400Hz. Also Included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded ,..Iaw PCM format. The decode portion of each device consists of an expanding decoder, which reconstructs the analog signal from the companded ,..Iaw code. a low-pass filter which corrects for the sin xix response of the decoder output and rejects signals above 3,400Hz and is followed by a single-ended power amplifier capable of driving low impedance loads. The devices require two 1.536MHz. 1.544MHz or 2.048MHz transmit and receive master clocks, which may be asynchronous; transmit and receive bit clocks, which may vary from 64KHz to 2.048MHz; and transmit and receive frame sync pulses. The timing of the frame sync pulses and PCM data is compatible with both industry standard formats .. FEATURES • Complete CODEC and filtering system (COMBO) Including;. -:- Transmit high-Pass and low-pass filtering - Receive low-pass filter with sin xix correction - ,..Iaw compatible COder and DECoder. - Internal precision voltage reference - Active RC noise filters - Serial I/O interface - Internal auto-zero circuitry • ,..Iaw without signaling • Meets or exceeds all DJD. and CCITT specifications . • Low operating power: typically 60mW • Power-down standby mode: typically 3mW . • Automatic power-down • :!: 5V operetlon • TTL or CMOS compatible digital interfaces • Maximizes line interface card circuit density c8 SAMSUNG SEMICONolJCTOR 200 CMOS INTEGRATED CIRCUIT KT3054J BLOCK DIAGRAMS R2 R1 ANALOG IN II TIMING AND CONTROL +5V -5V ,--' a:w :0::", --':0:: 0--, 60dB 2' pF MHz mV V Common-Mode Rejection Ratio CMRRXA DC Test 60 dB Power Supply Rejection Ratio PSRRXA DC Test 60 dB Analog Interface with Receive Filter Out out Resistance RoRF .Load Resistance RLRF Load Capacitance CLRF Output DC Offset Voltage Pin VFRO VFRO= ±2.5V 1 3 600 500 VOSRO, 0 0, pF 200 . mV -200 Power Dissipation Power-Down Current ·lccO No Load 0.5 1.5 mA Power-Down Current leeO No Load 0.05 0.3 mA Active Current Icc1 No Load 6.0 9.0 rnA Active Current lee1 No Load 6.0 9.0 rnA c8 SAMSUNG SEMICONDUCTOR 202 CMOS INTEGRATED CIRCUIT KT3054J TIMING CHARACTERISTICS Characteristic Frequency of Master Clocks Symbol Test Condition l/tPM Depends on the device used and the BClK~ClKSEl Pin. MClKx and MClKR Min Typ Max 1.536 1.544 2.048 Unit MHz MHz MHz Width of Master Clock High tWMH MClKx and MClKR . 160 ns Width of Master Clock low . tWML MClKx and MClKR. 160 ns Rise Time of Master Clock tRM MCLKx and MClKR 50 ns Fall Time of Master Clock tFM MClKx and MClKR 50 ns Set-Up Time from BClKx High (and FSx in long Frame Sync Mode) to MClKx Falling Edge Period of Bit Clock tSSFM First bit clock after the leading edge of FSx tps 100 485 ns 488 15,725 ns Width of Bit Clock High tWSH VIH=2.2V 160 Width of Bit Clock low tWBL V1L =0.6V 160 ns Rise Time of Bit Clock tRS tps = 488ns 50 ns Fall Time of Bit Clock tFS tps =488ns 50 ns Holding Time from Bit Clock low to Frame Sync tHsFL long frame only 0 ns Holding Time from Bit Clock . High to Frame Sync tHOLD Short frame only 0 ns Set-Up Time from Frame Sync to Bit Clock low tSFS long frame only 80 ns Delay Time from BClKx High 10 Dala Valid tDSD load = 150pF plus 2 lSTTl loads 0 load = 150pF plus 2 lSTTl loads ns 180 ils 140 ns 50 165 ns 20 165 ns Delay Time to TSx low tXDP Delay Time from BClKx low to Data Oulpul Disabled IDzc Delay Time to Valid Data from FSx or BClKx,Whlchever Comes later IDzF Set-Up Time from DR Valid to BClKRIX low tSDS 50 ns Hold Time from BClKRIX low to DR Jnvalid IHsD 50 ns Delay Time from BClKRIX low 10 SIGR Valid Set-Up Time from FSXlR 10 BClKXIR low . .c8 tOFSSG ISF SAMSUNG SEMICONDUCTOR CL=OpF 10 150pF load = 50pF plus 2 lSTTl loads Short frame sync pulse (lor 2 bit clock periods long) (Note 1) , I 50 300 ns ns 203 I CMOS INTEGRATED CIRCUIT KT3054J TIMING CHARACTERISTICS Characteristic (Continued) Symbol Test Condition Min Typ Max Unit Hold Time from BCLKXIR Low to FSXlR Low tHF Short frame sync pulse (1 or 2 bit clock periods long) (Note 1) 100 ns Hold Time from 3rd Period of Bit Clock Low to Frame Sync (FSx or FS R) tHBFI Long frame sync pulse (from 3 to 8 bit clock periods long) 100 ns Minimum Width of the Frame Sync Pulse (Low Level) tWFL 64K bitls operating mode 160 ns Note 1: For short frame sync timing. FSx and FSR must go high while their respective bit clocks are high. TIMING DIAGRAM TSx -:--------t\ MCLKR MCLKx BCLKX FSx _ _ _ _--'T SIGx Dx---------~ tSDB tHBD tHBD Fig. 2. Short Frame Sync Timing c8 SAMSUNG SEMICONDUCTOR, 204 CMOS INTEGRATED CIRCUIT KT3054J TIMING DIAGRAM FSX (Continued) ----= f--------tSSFB+-------i I tHBSF SFX __________~~+---S-I-G-N-A-Ll-N-G-F-R-A-M-E--~--------------------~--------____~+_--~--~------ ----- ,---, \ \ tSSFF f------++---tSSFB--------i SFR SIGNALING FRAME ----------------------~------_H--------------------~--+_------tSDB tHBD tHBD SIGR. ------------------------------------------------------------------------~~----Fig. 3 Long Frame Sync Timing c8 SAMSUNGSEMICONDUCTOR 205 CMOS INTEGRATED CIRCUIT ·KT3054J TRANSMISSION CHARACTERISTICS (Unless otherwise specifiEld: Ta=O·C to 70·C, Vcc=5V±5%, Vaa= -5V±5%, GNDA=OV, f=1.02KHz, VIN = OdBmO, transmit Input amplifier connected for unity:galn non-inverting.) . Characteristic Min Typ Max Unit Symbol Test Condition AL Nominal OdBmO level is 4dBm (6000) OdBmO· 1.2276 Vrms .2.501 VPK Amplitude Response Absolute Levels Max Overload Level tMAX Max overload level (3.17dBmO) Transmit Gain, Absolute GXA Ta=25·C, Vcc =5V, Vaa = -5V· Input at GSx = OdBmO at 1Q20Hz Transmit Gain, Relative to GXA GXR f=16Hz f=50Hz f=60Hz f=200Hz f = 300Hz - 3000Hz f=33OOHz f=3400Hz f=4000Hz f = 4600Hz and up, measure response. from OHz to 4000Hz Absolute Transmit Gain Variation with Temperature GXAT Absolute Transmit Gain Variation with Supply Voltage GXAV Transmit Gain Variations with . Level Sinusoidal test method Reference level = -10dBmO GXRL · VFxl + = - 4OdBmO to + 3dBmO VFxl + = -5OdBmOto -40 dBmO VFxl + = - 55dBmO to - 5OdBmO Receive Gain, Absolute GRA Ta=25·C, Vcc =5V, Vea= -5V Input = Digital code sequence for OdBmO signal at 1020Hz Receive Gain, Re·lative to GRA GRR f = OHz to 3000Hz f=33OOHz f=3400Hz f=4000Hz Absolute Receive Gain Variation with Temperature GRAT Absolute Receive Gain Varlation with Supply Voltage GRAv Re.ceive Gain Variations with Level GRRl Receive Output Drive Level VRO c8 -0.15 0.15 dB -40 -30 -26 -0.1 0.15 0.05 0 -14 -32 dB dB dB dB dB dB dB dB dB Ta = O·C to 70·C ±0.1 dB Vcc=5V±5%, Vaa= -5V±5% ±0.05 dB -0.2 -0.4 -1.2 0.2 0.4 1.2 dB dB dB -0.15 0.15 dB -0.15 -0.35 -0.7 0.15 0.05 0 -14 dB dB dB dB Ta = O·C to 70·C ±0.1 dB Vcc=5V±5%, Vea= -5V±5% ±0.05 dB 0.2 0.4 1.2 dB dB dB 2.5 V -1.8 -0.15 -0.35 -0.7 . Sinusoidal test method; reference input PCM code corresponds to an Ideally encoded-10dBmO signal PCM level = - 40dBmO to + 3 dBmO -0.2 PCM level = -5OdBmO to -40dBmO -0.4 PCM level = - 55dBmO to - 5OdBmO -1.2 Rl =6001l SAMSUNG SEMICONDUCTOR -2.5 206 CMOS INTEGRATED CIRCUIT KT3054J TRANSMISSION CHARACTERISTICS Characteristic (Continued) Symbol Test Condition Min Typ Max Unit Envelope Delay Distortion with Frequency Transmit Delay, Absolute OleA f= 1600Hz 290 315 ILs Transmit Delay, Relative to DXA DXR f = 500Hz - 600Hz f = 600Hz - 600Hz f = 800Hz - 1000Hz f = 1000Hz -1600Hz f = 1600Hz - 2600Hz f = 2600Hz - 2800Hz f 2800Hz - 3000Hz 195 120 50 20 55 80 130 220 145 75 40 75 105 155 ILS ILs ILS ILS ILs ILs ILS Receive Delay, Absolute ORA f= 1600Hz 180 200 ILs ORR f = 500Hz - 1000Hz f = 1000Hz - 1600Hz f = 1600Hz - 2600Hz f = 2600Hz - 2800Hz f = 2800Hz - 3000Hz 90· 125 175 ILS ILs ILS ILs ILs Transmit Noise, C Message Weighted Nxe VFxl+ =OV 12 15 d8rnCD Receive Noise, C Message Weighted NRC PCM code equals alternating positive and negative zero 8 11 dBrnCD Noise, Single Frequency NRS f=OKHz to 100KHz, loop around measurement, VFxl + = OVrms = Receive Delay, Relative to ORA -40 -30 -25 -20 70 100 145 Noise Positive Power Supply Rejection, . Transmit PPSRx VFxl + = OV,rms, Vee = 5.0Voe + 100mVrms f = OKHz - 50KHz Negative Power Supply Rejection, Transmit VFxl + = OVrms, NPSRx Vee = - 5.0Voe + 100mVrms f = OKHz - 50KHz Positive Power Supply Rejection, Receive PCM code equals positive zero Vee = 5.0Voc + 100mVrms PPSRR f = OHz - 4000Hz f = 4KHz - 25KHz f == 25KHz - 50KHz Negative Power Supply Rejection, Receive PCM code equals positive zero Vee= -5.0Voc + 100mVrms NPSRR f = OHz -:- 4000Hz f = 4KHz - 25KHz , f = 25KHz - 50KHz c8 SAMSUNG SEMICONDUCTOR -53 dBmO 40 dBC 40 dBC 40 40 36 dBC dB dB 40 40 dBC dB dB 36 207 CMOS INTEGRATED CIRCUIT KT3054J TRANSMISSION CHARACTERISTICS Characteristic (Continued) Symbol Spurious Out-of-Band Signals at the Channel Output Test Condition Min Typ . Loop around measurement, OdBmO, 300Hz - 3400Hz input applied to VFxl + , Measure individual image SOS signals at VFRO 4600Hz - 7600Hz 7600Hz - 8400Hz 8400Hz -100,OOOHz' Max Unit -32 -40 -32 dB dB dB Distortion Signal to 'Total Distortion STDx Sinusoidal test method Transmit or Receive Half-Channel STDR Level = 3.0dBmO =OdBmO to 130dBmO = -40dBmO XMT RCV '" - 55dBmO XMT RCV Single Frequency Distortion, Transmit SFDx -46 dB Single Frequency Distortion, Receive SFDR -46 dB Intermodulation Distortion IMD Loop around measurement, VFx + = -4dBmO to -21dBmO, two frequencies in the range 300Hz - 3400Hz -41 dB Transmit to Receive Crosstalk, OdBmO Transmit Level CTX.R f = 300Hz - 3400Hz DR = Steady PCM code -90 -75 dB Receive to Transmit Crosstalk, OdBmO Receive Level CTR-x f = 300Hz - 3400Hz, VFxl = OV -90 -70 (Note 1) dB 33 36 29 30 14 15 dBC dBC dBC dBC dBC dBC Crosstalk Note 1. CTR.X is measured with a - 4OdBmO activating signal applied at VFxl + ENCODING FORMAT AT DxOUTPUT V1N (at GSx) = c8 + Full - Scale 10000000 V1N (at GSx) = OV 11111111 01111111 V1N (at GSx) = - Full - Scale. 00000000 SAMSUNG SEMICONDUCTOR 208 CMOS INTEGRATED CIRCUIT KT3054J PIN DESCRIPTION Pin No. Symbol Description . Negative power supply pin. Vee = -5V 1 Vee 2 GNDA Analog ground. All signals are referenced to this pin. 3 VFRO Analog output of the receive filter. 4 Vee Positive power. supply pin. Vee 5 FSR Receive frame sync pulse which enables BClKR to shift PCM data into DR. FSR is an 8KHz pulse train. 6 DR Receive data input. PCM data is shifted into DR following the FSR leading edge. ± 5%. I The bit clock which shifts data into DR after the FSR leading edge. Many vary from 64KHz to 2.048MHz. Alternatively, may be a: logic input which selects either 1.536MHzl1.544MHz or 2.048MHz for master clock in synchronous mode and BClKx is used for both ·transmit and receive directions. BClKR/ 7 = + 5V ±5%. CLI~SEl 8 MClKR/ PDN Receive master clock. Must be 1.536MHz, 1.544MHz or 2.048MHz. May be asynchronous with MClKx, but should be synchronous with MClKx for best performance. When MClKRis connected continously low, MClKR is selected for all internal timing. When MClKR is connected continuously high the device is powered down. 9 MClKx Transmit master clock. Must be 1.536MHz, 1.544MHz or 2.048MHz. Maybe asynchronous with MClKR. 10 BClKx The bit clock which shifts out the PCM data on Dx. May vary from 64KHz to 2.048MHz, but must be synchronous with MClKx. 11 Dx The TRI·STATE PCM data output which is enabled by FSx. 12 FSx Transmit frame sync pulse input which enables BClKx to shift out the PCM data on Dx. FSx·is an 8KHz pulse train. 13 TSx Open drain ouptut which pulses low during the encoder time slot. 14 GSx Analog output of the transmit input amplifier. Used to externally !iet again. 15 VFxl- Inverting input of the transmit input amplifier. 16 VFxl+ Non·inverting input of the trans.mitinput amplifier. , PIN CONNECTION VFx'+ VFx'GSx TSx KT3054J DR FSx 6 BCLKRI CLKSEL BCLKx MCLKRI PDN c8 SAMSUNG SEMICONDUCTOR' 209 KT3054J CMOS INTEGRATED CIRCUIT FUNCTIONAL DESCRIPTION POWER·UP When power is first applied, power-on reset circuitry initializes the COMBO and places it into the power-down mode. All non-essential circuits are deactivated and the Ox and VFRO outputs are put in high impedance states. To powerup the device, a logical low level or clock must be applied to the MCLKFJPDN pin and FSx and/or FSRpulses must be 'present. Thus, 2 power-down control modes are available. The first is to pull the MCLKFJPDN pin high; the alternative is to hold both FSx and FSR inputs continuously low-the device will power-down approximately 2ms after the last FSx or FSR pulse. Power-up will occur on the first FSx or FSR pulse. The TRI-STATE PCM data output, Dx, will remain in the high impedance state until the second FSx pulse. SYNCHRONOUS OPERATION For synchronous operation, the same master clock and bit clock should be used for both the transmit and receive directions. In this mode, a clock must be applied to MCLKx and the MCLKFJPDN pin can be used as a power-down control. A low level on MCLKR/PDN powers up the device and a high level powers down the device. In either case, MCLKx will be selected as the master clock for both the transmit and receive circuits. A bit clock must also be applied to BCLKx and the BCLKFJCLKSEL can be used to select the proper internal divider for a master clock of 1.536MHz, 1.544MHz or 2.048MHz. For 1.544MHz operation, the device automatically compensates for the 193rd clock pulse each frame. With a fixed level on the BcLKFJCLKSEL pin, BCLKx will be selected as the bit clock for both the transmit and receive directions. In this synchronous mode, the bit clock, BCLKx, may be from 64KHz to 2.048MHz, but must be synchronous with MCLKx. Each FSx pulse begins the encoding cycle and the PCM data from the previous encode cycle .is shifted out of the enabled Dx output on the positive edge of BCLKx. After 8 bit clock periods, the TRI·STATE Dx output is retumed to a high impedance state. With an FSRpulse, PCM data is latched via the DR Input on the negative edge of BCLKx (or BCLKR if running). FSx and FSR must be synchronous with MCLKXlR . TABLE 1. Selection of Master Clock Frequencies BCLKR/CLKSEL Master Clock Frequency Selected Clocked, 1.536MHz or 1.544MHz 0 2.048MHz 1 (or Open Circuit) 1.536MHz or 1.544MHz ASYNCHRONOUS OPERATION For asynchronous operation, separate transmit and receive clocks may be applied .. MCLKx and MCLKR must be 1.536MHz, 1.544MHz for the KT3054, and need not be synchronous. For best transmission performance, however, MCLKR should be synchronous with MCLKx, which is easily achieved by applying only static logic levels to the MCLKFJPDN pin. This will automatically connect MCLKx to all internal MCLKR functions (see Pin Description). For 1.544MHz operation, the device automatically compensates fo~ the 193rd clock pulse each frame. FSx starts each encoding cycle and must be synchronous with MCLKx and BCLKx. FSR starts each decoding cycle and must be synchronous with BCLKR. BCLKRmust be a clock, the logic levels shown in Table 1 are not valid in asynchropous . mode. BCLKx and BCLKR may operate from 64KHz to 2.048MHz. SHORT FRAME SYNC OPERATION The COMBO can utilize a long frame sync pulse. Upon power initialization, the device assumes a short frame mode. In this mode, both frame sync pulses, FSx and FSR, must be one bit clock period long, ""ith timing relationships specified in Figure 2. With FSx high during a falling edge of BCLKx, the next rising edge of BCLKx enables the Ox TRI-STATE output buffer, which will output the sign bit. The following seven rising edges clock out the remainirig seven bits, and the next falling edge c;lisables the Dx Ol,ltput. With FSR high during a falling edge of BCLKR(BCLKx In synch~onous mode), the next falling edge of BCLKR latches in the sign bit. The following seven falling edges latgch in the seven remaining bits. All four devices may utilize the short frame sync pulse in synchronous or asynchronous operating mode. ' c8 SAMSUNG SEMICONDUCTOR 210 KT3054J CMOS INTEGRATED CIRCUIT LONG FRAME SYNC OPERATION To use the frame mode, both the frame sync pulses, FSx and FSR, must be three or more bit clock periods long, with timing relationships specified in Figure 3. Based on the transmit frame sync, FSx, the COMBO will sense whether short or long frame sync pulses are being used. For 64KHz operation, the frame sync pulse must be kept low for a minimum of 160ns. The Dx TRI-STATE output buffer is enabled with the rising edge of FSx or the rising edge of BClKx, whichever comes later, and the first bit clocked out is the sign bit. The following seven BClKx rising edges clock out the remaining seven bits. The Dx output is disabled by the falling BClKx edge following the eighth rising edge, or by FSx going low, whichever comes later. A rising edge on the receive frame sync pulse, FSR, will cause the PCM data at DA to be latched in on the next eight falling edges of BClKR (BClKx in synchronous mode). All four devices may utilize the long frame sync pulse in synchronous or asynchronous mode. RECEIVE SECTION The receive section consists of an expanding DAC which drives a fifth order switched-capacitor low pass filter clocked at 256KHz. The decoder is A-law or wlaw (KT3054) and the 5th order low pass filter corrects for the sin x/x attenuation due to the 8KHz sample/hold. The filter is then followed by a 2nd order RC active post-filter/power amplifier capable of driving a 6000 load to a level of 7.2dBm. The receive section is unity-gain. Upon the occurrence of FSR; the data at the DR input is clocked in on the falling edge of the next eight BClKA (BClKx) periods. At the end of the decoder time slot, the decoding cycle begins, and 10l-ls later the decoder DAC output is updated. The total decoder delay is -10l-ls (decoder update) plus 110l-ls (filter delay) plus 62.51-1s (1/2 frame), which gives approximately 180l-Is. TRANSMIT SECTION The transmit section input is an operational amplifier with provision for gain adjustment using two external resistors, see Figure 4. The low noise and wide bandwidth allow gains in excess of 20dB across the audio passband to be realized. The op amp drives a unity-gain filter consisting of RC active pre-filter, followed by an eighth order switched-capacitor bandpass filter clocked at 256KHz. The output of this filter directly drives the encoder sample-and-hold circuit. The AID is of companding type according to wlaw (KT3054) or A-law coding conventions. A precision voltage reference is trimmed in manufacturing to provide an input overload (tMAxl of nominally 2.5V peak (see table of Transmission Characteristics). The FSx frame sync pulse controls the sampling of the filter output, and then the successive-approximation encoding cycle begins. The 8-bit code is then loaded into a buffer and shifted out through Dx at the next FSx pulse. The total encoding delay will be approximately 1651-1s (due to the transmit filter) plus 1251-1s (due to encoding delay), which totals 290l-Is. Any offset voltage due to the filters or comparator is cancelled by sign bit integration. APPLICATION INFORMATION POWER SUPPLIES In applications where the printed circuit board may be plugged into a "hot" socket with power and clocks already present, an extra long ground pin in the connector should be used. All ground connections to each device should meet at a common point as close as possible to the GNDA pin. This minimizes the interaction of ground return currents flowing through a common bus impedance. 0.11-1F supply decoupling capacitors should be connected from this common ground point to Vee and Vee. For best performance, the ground point of each CODEC/FllTER on a card should be connected to a common card ground in star formation, rather than via a ground bus. This common ground point should be decoupled to Vee and Vee with 10l-lF capacitors. RECEIVE GAIN ADJUSTMENT For applications where CO DEC/filter receive output must drive a 6000 load, but a peak swing lower than ± 2.5V is required, the receive gain can be easily adjusted by inl?erting a matched T-pad or r-pad at the output. Table" lists the required resistor values for 6000 terminations. As these are generally non-standard values, the equations can be used to compute the attenuation of the closest practical set of resistors. It may be necessary to use unequal values for the R1 or R4 arms of the. attenuators to achieve a precise attenuation. Generally it is tolerable to allow a small deviation of the input impedance from nominal while still maintaining a good return loss. For example a 30dB return loss against 6000 is obtained if the output impedance of the attenuator is in the range 2820 to to 3100 (assuming a perfect transformer). c8 SAMSUNG SEMICONDUCTOR 211 I CMOS INTEGRATED CIRCUIT KT3054J T-Pad Attenuator '/I"-Pad Attenuator r-------.., 3001 I R3 ~ l R4 R4 IZ2 300 1:,.[2,2U600 r-------..., R1 111 I I I I Z1! I I 1 I IL.. ___ _ N +1 N = Z1 (W-1)-~ (N2-1) N R2 = z,J Z1'Z2 (w=-:1) 2 R1 . Where: N and I POWER IN ='\1 POWER OUT s=~ = Also: Z .JZsc,-Zoc . Where Zsc, = impedance with short circuit termination. and Zoe = impedance with open circuit termination TABLE II. Attenuator Table for Z1 c8 SAMSUNG = Z2 = 3000 (All Values in 11) dB R1 R2 R3 R4 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 2 3 4 5 6 7 8 9 10 11 12 13 14 .15 16 18 20 1.7 3.5 5.2 6.9 8.5 10.4 12.1 13.8 15.5 17.3 34.4 51.3 68 84 100 115 379 143 156 168 180 190 200 210 218 233 246 26K .13K 8.7K 6.5K 5.2K 4.4K 3.7K 3.3K 2.9K 2.61 1.3K 850 650 494 402 380 284 244 211 184 161 142 125 . 110 3.5 6.9 10.4 13.8 17.3 21.3 24.2 27.7 31.1 34.6 70 107 144 183 224 269 317 370 427 490 550 635 720 816 924 1.17K 1.5K 52K 26K 17.4K 13K 10.5K 8.7K 7.5K 6.5K 5.8K 5.2K 2.6K 1.8K 1.3K 1.1K 900 785 698 630 527 535 SEMICON~UCrOR 98 77 61 500 473 450 430 413 386 366 212 CMOS INTEGRATED CIRCUIT KT3054J APPLICATION CIRCUITS -5V TO SllC Vee VFxl+ GNDA VFxl GSx Vee ANALOG INTERFACE KT3054J VFRO ------ FROM TSAC' FROM SLiC ---------FSx FSR ______ 1 FROM TSAC 5V OR GNDA PDN I I DIGITAL Ox INTERFACE DR BClKR/ClKSEl BClKx MClKR/PDN MClKx Note: XMIT gain = 20 x log(R1 :t2), (R1 BClKx (2.048MHzl1.544MHz) + R2) > 10KO. Fig. 4 c8 SAMSUNG SEMICONDUCTOR 213 CMOS INTEGRATED CIRCUIT KT3064J COMBO CODEC 20 CERDIP The KT3064 Vt-Iaw), is monolithic PCM CODECI FILTERS utilizing the AID and D/A conversion, a serial PCM interface. The devices are fabricated using double-poly CMOS process. The device feature an additional receive power amplifierto'provide push-pull balanced output drive capability. The receive gain can be adjusted by means of two external resistors for an output level of up to ± 6.6V across a balanced 6000 load. The Analog Loopback switch and TSx output is also included. FEATURES • wlaw compatible • Meets or exceeds all D3JD4 and CCITT specifications • :!: 5V operation • Low operating power: typically 7,OmW • Active RC noise filters • Power-down standby mode: typically 3mW • Automatic power-down • Transmit high-pass and low-pass filtering • Internal precision voltage reference • Serial I/O interface • Internal auto-zero circuitry • TTL or CMOS compatible digital interfa,ce • Maximizes line interface card circuit density BLOCK DIAGRAM R2 c8 SAMSUNG SEMICONDUCTOR 214 CMOS INTEGRATED CIRCUIT KT3064J ABSOLUTE MAXIMUM RATINGS Characteristic Value Unit Vee 7 V Vee -7 V V Symbol Vee to GNDA Vae to GNDA Voltage at Any Analog Input or Output Analoge 1/0 Vee+0.3 to VeB -0.3 Voltage. at Any Digital Input or Output Digital 1/0 Vee+0.3 to GNDA-0.3 V Ta -25-+125 ·C Storage Temperature Range T. -65-+150 ·C Lead Temperature Soldering, 10 secs) TL 300 ·C Operating Temperature Range I ELECTRICAL CHARACTERISTICS (Unless otherwise noted: Vee=5.0V±5%, Vee= -5V±5%, GNDA=OV, Ta=O·C to 70·C; typical characteristics specified at Vee = 5.0V, Ta = 25°C; ali signals are referenced to GNDA) Characteristic Symbol Test Condition Min Typ . Max Unit Power Dissipation Active Current led1 Power amplifiers active, VPI = OV 7.0 10.0. mA Active Current lee1 Power amplifiers active, VPI = OV 7.0 10.0 mA Power'Down Current leeo 0.5 1.5 . mA leBo 0.05 0.3 mA Power·Down Current Digital Interface Input Low Current hL GNDAsV1NSV1L, Ali digital inputs -10 10 p.A Input High Current I'H V'HSV'NSVee -10 10 p.A Output Current in High Impedance State (TRI·STATE) loz Ox, GNDASVoSVee -10 10 p.A Input Low Voltage V'L 0.6 V Input High Voltage V'H 2.2 Output Low Voltage VOL Dx,IL=3.2mA SIG R, IL = 1.0mA Tsx, IL=3.2mA, Open Drain Output High Voltage VOH Ox, IH = - 3.2mA SIG R, IH = - 1.0mA V 0.4 0.4 0.4 2.4 ·2.4 V V Analog Interface with Transmit Input Amplifier Input Leakage Current I,XA - 2.5V sV S + 2.5V, VFxl + or VFxl- Input Resistance R,XA - 2.5V sV S + 2.5V, VFxl Output Resistance RoXA Closed loop, unity gain Load Resistance RLXA GSx Load Capacitance CLXA GSx Output Dynamic Range VoXA GSx, RL~ 10KO ciS SAMSUNG SEMICONDUCTOR + or VFxl- -200 200 10 1 3 10 MO KO 50 ±2.B nA MO pF V 215 CMOS INTEGRATED CIRCUIT KT3064J ELECTRICAL CHARACTERISTICS , Characteristic Voltage Gain (Continued) Test Conditions Symbol Av'XA Unit-Gain Bandwidth FuXA Offset Voltage ViJsXA Common-Mode Voltage VeMXA Min Typ Max 5000 VFxl + to GSx 1 CMRRXA>60dB Unit VIV 2 MHz -20 20 -2.5 2.5 mV V Common-Mode Rejection Ratio CMRRXA DC Test 60 dB Power Supply Rejection Ratio 60 dB PSRRXA DC Test Analog Interface with Receive Filter (All Devices) Output Resistance Output DC Offset Voltage RoRF VOSRO 1 Pin VFRO Measure from VFRO to GNDA load Resistance RLRF VFRO= ±2.5V load Capacitance CLAF Connect from VFRO'to GND A -200 3 0 200 mV 10 KO 25 pF Analog Interface with Power Amplifiers (All Devices) Input Leakage Current IPI -1.0V:s;VPI:s;1.0V:s;VPI:s;1.0V Input Resistance RIPI -1.0V :s;VPI:s; 1.0V Input Offset Voltage Vias , Output Resistance Unit-Gain Bandwidth ROP Fe CLP nA MO -25 25 1 KHz 100 500 1000 VPO+ or VPO- to GNDA mV 0 400 Open loop (VPO - ) RL = 6000 Rl = 3000 100 10 Inverting unity gain at VPO+ or VPORL~15000 load Capacitance -100 pF pF pF Gain from VPO - to VPO + GA p + RL::: 3000 VPO + to GNDA level at VPO-::: -1.77Vrms (+3dBmo) Power Supply Rejection of Vee or VBB PSRR p VPO - connected to. VPI OKHz-4KHz OKHz-50KHz Frequency of Master Clock IltpM Depends on the device used and the BClKR/ClKSEl Pin MClKx and MClKA Width of Master Clock High tWMH MClKx and MClKR 160 Width of Master Clock low tWML MClKx and MClKR 160 Rise Time of Master Cl:ock tRM MClKx and MClKR 50 ns Fall Time of Master Clock tFM MClKx and MClKR 50 ns Set-Up Time from BCLKx High (and FSx in long Frame Sync' Mode) to MClKx Falling Edge Period of Bit Clock tSBFM First bit clock after the leading edge of FSx tps VIV -1 60 dB dB 36 1.536 1.544 '2.048 . ns ns ns 100 485 MHz MHz MHz 488 15,725 ns Width of Bit Clock High tWBH V'H= 2.2V 160 ns Width of Bit Clock low tWBl Vll:::0.6V 160 ns Rise Time of Bit Clock tRB tPB= 460ns 50 ns Fall Time of Bit Clock tF8 tPB= 488ns 50 ns c8 SAMSUNG SEMICONDUCTOR 216 KT3064J CMOS INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS Characteristic (Continued) Symbol Test Conditions Min Typ Max Unit Holding Time from Bit Clock Low to Frame Sync tHBF Long frame only 0 ns Holding Time from Bit Clock High to Frame Sync tHOLO Short frame only 0 ns Set-Up Time for Frame Sync to Bit Clock Low tSFB Long Frame Only 80 ris Delay Time. from BCLKx High to Data Valid tOBo Load = 150pF plus 2 LSTIL loads 0 Delay Time to TSx Low txop Load = 150pF plus 2 LSTIL loads Delay Time from BCLKx Low to Data Output Disabled tOEe Delay Time to Valid Data from FSx or BCLKx, whichever Comes Later tOZF Set-Up Time from DR Valid to BCLKRIX Low tSOB 50 ns Hold Time from BCLKR/x Low to DR Invalid IHBO 50 ns Delay Time from BCLKRIX Low to SIGR Valid tOFSSF Set-Up Time from FSX1R to BCLKXlR Low CL=OpF to 150pF 180 ns 140 ns 50 165 ns . 20 165 ns Load = 50pF plus 2 LSTIL loads 300 ns tSF Short frame sync pulse (1 or 2 bit clock periods 10ng)(Note 1) 50 ns Hold Time from BCLKx1R Low . to FSXlR Low tHF Short frame sym; pulse (1 or 2 bit clock periods 10ng)(Note 1) 100 ns Hold Time from 3rd Period of Bit Clock low to Frame Sync (FSx of FSR) tHBFI Long frame sync pulse (from 3.to 8 bit clock periods long) 100 ns Minimum Width of the Frame . Sync Pulse (Low Level) tWFL 64K bitls operating mode 160 ns Note 1: For short frame sync timing, FSx and FSR must go high while their respective bit Clocks are high. PIN CONFIGURATION . ., > + 0 Il. > c8 + I J' > J' > « 0 Z (!) I 0 Il. > SAMSUNG SEMICONDUCTOR :: '..J :::;; u 0: > 0 a: IL > u <) > a: (/) IL a: 0 ~ ..J In Ii: " U z 0 ..J Il. In "U:::;; u Ii: ..J 217 II CMOS INTEGRATED CIRCUIT KT3064J TIMING DIAGRAM MClKx MClKA BlCKx FSx loze Ox BClKA Fig. 2. Short Frame Sync Timing MClKX MClKA BClKx FSX Ox BClKA FSR ----J[" Fig. 3 Long Frame Sync Timing c8 SAMSUNG SEMICONDUCTOR 218 CMOS INTEGRATED CIRCUIT KT3064J PIN DESCRIPTION Pin c8 Name Function 1 VPO+ 2 GNOA Analog ground. All signals are referenced to this pin. 3 vpo- The inverted output of the receive power amplifier. 4 VPI 5 VFAO 6 Vee' Positive power supply pin Vee 7 FSA Receive frame sync pulse which enables BClKA to shift PCM data into OA, FS A is an BKHz pulse train. (refer to Fig 2 and 3 for timing details) B OA Receive data input. PCM data is shifted into OA following the FSA leading edge. 9 BClKFJ ClKSEl 10 MClKAI PON Receive master clock. Must be 1.536MHz or 2.04BMHz. May be asynchronous with MClKx, but should be synchronous with MClKx for best performance. When MClKA is connected continuously low, MClKx is selected for ,all internal timing. When MClKA is connected continuously high, the device is powered down. 11 MClKx Transmit master clock. Must be 1.536MHz, 1.544MHz or 2.04BMHz. May be asyncl"jronous with MClKA, 12 BClKx The bit clock which shifts out the PCM data on Ox. May vary from 64KHz to 2.04BMHz, but must be synchronous with MClKx. 13 Ox The TRI-STATE PCM data output which is enabled by FSx. 14 FSx Transmit frame sync pulse input which enables BClKx to shift out the PCM data a on Ox, FSx is an BKHz pulse train. (refer to Fig 2, 3) 1,5 TSx The non-inverted output of the receive power amplifier. Inverting input to the receive power amplifier. Also powers down both amplifiers when connected to Vee. Analog output of 'the receive filter. II = +5V±5%. The bit clo.ck which shifts data into OA after the FSA leading edge. ,May vary from 64KHz to 2.04BMHz. Alternatively, may be a logic input which selects either 1.536MHzl1.544MHz or 2.04BMHz for master clock in synchronous mode and BClKx is used for both transmit and receive directions. (see Table 1) Open drain output which pulses low during t~e encoder time slot. 'Analog loopback control inpu!. Must be set to logic '0' for normal operation. When pulled to logic '1', the transmit filter input is dis connected from the output of the preamplifier and connected to the VPO+ output of the receive power, amplifier. 16 ANlB 17 GSx Analog output of the transmit input amplifier. Used to externally set again. 1B VFxl- Inverting input of the transmit input amplifier. 19 YFxl+ Non-inverting input of the transmit input amplifier. 20 Vee Negative power supply pin Vee::: - 5V ± 5%. SAMSUNG SEMICONDUCTOR 219 CMOS INTEGRATED CIRCUIT KT3064J .FUNCTIONAL DESCRIPTION POWER·UP When. power is first applied, power-on reset circuitry initializes the COMBO and places it into the power-down mode. All non-essential circuits are deactivated and the Ox, VFRO, VPO - and VPO + outputs are put in high impedance states. To power-up the device, a logical low level or clock must be applied to the MCli Il! co +0.5 CO I :!! 4~ 40 ..:;.... 40 30 20 r- ~ 39~5116 ~ Iz :c ~4 :k g z~ Ii ~ANNEL f- ~"23 22~5- " JANK SPECIFICATIONS _ _ +30 -10 -30 -40 -50 INPUT LEVEL - dBmO -0.1 -0.1 0..1 _ ~~5 -0.05 -, -1 -0.5.1 03 -2 _~HANNEL BANK I -3 -20 r -0.1 SPECIFICATIONS I I 10 +1 -4 +10 -60 I -w -3 -20 -30 -40 -50 I -80 -70 INPUT LEVEL - dBmO Fig. 5 FIg. • AID, D/A CONVERSION TIMING f--------------~125~oec---------------i SAMPLE AND HOLD SAMPLE TIME ::: 32 MASTER CLOCKS· ENABLE SAR SAR REQUIRES ::: 128 MASTER CLOCKS _____--J/ ________________ ~ RCV SYNC \~<------------------------J;lANALOGOUTPUTUPDATED __________ Fig. 6 DATA INPUT/OUTPUT TIMING 1-_2OO_n_O_-I REQUIRED FOR DATA TO TRANSFER KT5116 FROM MASTER TO SLAVE XMIT INTERNAL CLOCK DIGITAL OUT XMIT SYNC )(VALID DATA XMIT CLOCK ------------------' RCV INTERNAL CLOCK REQUIRED TO TRANSFER DATA FROM MASTER TO SLAVE 200n DIGITAL IN RCV SYNC SOns REQUIRED TO LOAD MASTER RCV CLOCK VALID INCOMING DATA . Fig. 7 c8 SAMSUNG SEMICONDUCTOR 234 KT5116J CMOS INTEGRATED CIRCUIT KT5116 AID CONVERTER (p.·Law Encoder) TRANSFER CHARACTERISTIC 11111111 -""..... 11110000 11100000 / 1101 0000 ..- l/ I 11000000 10110000 ~ 5 10100000 oooo} 10010000 II 1000 --' 0000 0000 0-- ~ 00010000 13 00100000 Ci 0011 0000 0100 0000 j 01010000 , 01100000 01110000 01111111 - ~ V- ./ ~ - VREF 0 2 + VREF -2- +VREF Fig. 8 ANALOG INPUT (VOLTS) - D/A CONVERTER (p.·Law Decoder) TRANSFER CHARACTERISTIC 01111111 ......... 0111 0000 ....... 01100000 ~ , \. 01010000 0100 0000 0011 0000 00100000 00010000 10010000 10100000 1011 0000 , 1100 0000 \ 1101 0000 11100000 r" 11110000 ~ i"-- 11111111 -VREF - VREF -2- 0 + VREF 2 +VREF Fig. 9 ANALOG OUTPUT (VOLTS) c8 SAMSUNG SEMICONDUCTOR 235 CMOS INTEGRATED CIRCUIT KT5116J 64KHz OPERATION, TRANSMITTER SECTION TIMING 1---------------125~.~c ----:-----------1 XMITSYNC 1 MASTER CLOCK PERIOD (MIN) Fig. 10 PCM DATA PRESENT Note: All rise and fail iimes are measured from O.4V and 2.4V. All delay times are measured from 1.4V. 64KHz OPERATION, RECEIVER SECTION TIMING 125~.ec------------~--1 . -1 17 MASTER . CLOCK' PERIODS (MIN) tRDS ~ALI fiR,,f;J/ilFlIQ!ifilil.Q/'ifll'.QfiIi!0r,:JlFfl\CJrlli!iJ,QfilW.CJrl .fi::1:1t:j~ff11:i E7v:t1i~v:t:IJ EJVJ.'t:J ~tJ':ff:J ~tN:Je3~ ~\f11:J~ \ Fig. 11 Note: All. rise and fall times are measured from O.4V and 2.4V. All delay times are measured from 1.4V. PCM SYSTEM BLOCK DIAGRAM KT5116 GAIN ADJUST' 8 BAND PASS FILTER' TRANSMITIER . (AID) DIGITAL MUX . DIGITAL TRUNK FROM { OTHER CHANNELS. 2 WIRE CABLE I I I I I I I ---~---- 13 LOW PASS FILTER I I LL~~~~~~~~ __ _ c8 SAMSUNG SEMICONDUCTOR RECEIVER (DIA) 12 DIGITAL DEMUX DIGITAL TRUNK TO { OTHER CHANNELS 236 . KT5116J CMOS INTEGRATED CIRCUIT SYSTEM CHARACTERISTICS TEST CONFIGURATION r-----------, I I I I I IDEAL DECODER I I 1.004KHz SIGNAL SOURCE I I----ilf---{ I I I I J I I SYSTEM I I I II IL _ _ _ _ _ _ _ _ _ _ _ ., I J I I I ENCODER ONLY J NOUT HP3551A 1.004KHz NOTCH I FILTER FILTER I . L ______________ ~ _______ I ~ SOUT+NoUT Fig. 12 Note: The ideal decoder consists of a digital decomponder and a 13·bit precision DAC. PERFORMANCE EVALUATION The equipment connections shOwn in Figure 12 can be used to evaluate tlie performance of the KT5116. An analog signal provided by the HP3551 a transmission test set is connected to the Analog Input (Pin 1) of the KT5116. The Digital Output of the CODeC is tied back to the Digital Input and the Analog Output is fed through a lOW-pass filter to the HP3551A. Remaining pins of the KT5116 are connected as follows: 1. RCV SYNC is tied to XMIT SYNC. 2. XMIT CLOCK is tied to Master CLOCK. The signal is inverted and tied to RCV clock. The following timing signals are required: 1. Master CLOCK=2.048MHz 2. XMIT SYNC repetition rate=8KHz 3. XMIT SYNC width=8 XMIT CLOCK periods. when all the above requirements are met, the set-up of Figure 12 permits the measurement of synchronous system performance over a wide range of Analog Inputs. The data register and ideal decoder provide a means of checking the encoder portion of the KT5116 independently of .the decoder section. To test the system in the asynchronous mode, Master CLOCK should be separated from RCV CLOCK. XMIT CLOCK and RCV CLOCK are separated also separated. c8 SAMSUNG S.EMICONDUCTOR 237 CMOS INTEGRATED CIRCUIT KT5116J ANALOG INPUT DEMO SET CIRCUIT DIAGRAM ANALOG OUTPUT POWER AMP R3 2.048MHz r----IO~~ R6 10MD 'NON ·POLARIZED 2.048MHz 128KHz 5V 2KII±1'10 • Power Supply Ripple Rejection C7 +5V C6 C5 C4 0---1I--I--I~-Ic.-lI-.05-~-F-x-4-l'" .05~F C3 GNDDo--~-~-~--4 GNDAo---------4----~--, C2 .05~F -5Vo--------~----- NOTE: All unused input connected to GNDD or Vee, only in HeT series. c8 SAMSUNG SEMICONDUCTOR 238 LM567C LINEAR INTEGRATED aRCUIT TONE DECODER 8 DIP The LM567C is a monolithic phase locked loop system designed to pr0vide a saturated transistor switch to GND. when an input signal is present within the passband. External components are used to independently set center frequency bandwidth and output delay. FEATURES • • • • • • Wide frequency range (O.01Hz - 500kHz). Bandwidth adJustabl, from 0 to 14% logic compatible output wHh 100mA current sinking capability. Inherant Immunity to fal.. 81gna18. High rejection of out..of.band slgnal8 and nolae. Frequency range adjustable over 20:1 range by an external re8lstor. 8 SOP II APPLICATIONS • • • • • • • Touch Tone Decoder Wireless Intercom. Communications paging deco,ders Frequency monitoring and control. Ultrasonic controls (remote TV etc.) Carrier current remote controls. Precision oscillator. ORDERING INFORMATION Device Package LM567CN 8 DIP LM567CD 8 SOP Operating Temperature 0- +70·C SCHEMATIC DIAGRAM c8 SAMSUNG SEMICONDUCI'OR 239 LINEAR INTEGRATED CIRCUIT LM567C = ABSOLUTE MAXIMUM RATINGS (Ta 25°C) Characteristic Operating Voltage Input Voltage Output Voltage IPower Dissipatlon Operating Temperature Storage Temperature Symbol value Unit 10 -10 -Vee +0.5 15 300 0-+70 -65-+150 V V V mW 'J Vcc V1N Vo Pd Topr Tstg "C °C ELECTRICAL CHARACTERISTICS Nee =5JJV. T... 25°C unless other wise specified) Characteristic Symbol Operating Voltage Range Supply Current Quiescent Supply Current Activated Quiescent Power Dissipation Vcc Icc-1 Icc-2 Highest Center Frequency Center Frequency Stability Center Frequency Shift With Supply Voltage HFO Fse Fcs Largest Detection Bandwidth Largest Detection B.W Skew Largest Detection Bandwidth Variation With Supply Voltage Largest Detection Bandwidth Variation With Temperature B.W Typ Max Unit .4.75 5.0 7 12 35 9.0 10 15 V . mA mA mW 100 500 35±60 0.7 2 KHz ppmfOC %N 14 2 ±1 18 3 ±5 %offo OAl of fo oAlN RL=20K RL=20K OOC to 700C 10 B.Ws . B.Wv 4.75-6.75V B.Wt Input Resistance RIN V1N-1 Fastest On-Off Cycling Rate Output Leakage Current Min POD Smallest Detectable Input Voltage Largest No Output Input Voltage Greatest Simultaneous Outband Signal To Inband Signal Ratio Minimum InPllt Signal to Wideband Noise Ratio . Test Conditions 20 IL =100mA. fi=fo V1N-2 S1/Sd S2/Sd .. FoUT leo 20 10 RL=20k V IN =300mVRMS fi=fo=100KHz fi 1 =140KHz fi 2 =60KHz RL=20K V1N =25mVRMS mVrms mVrms +6 dB -6 dB f0/20 0.01 Output Saturaton Voltage IL =30mA. V1N =25mVrms It =100mA. V1N =25mVrms 0.2 0.6 Output Fall Time Output Rise Time TF TR RL=50 RL=50 30 150 SAMSUNG SEMICONDUCTOR Kohm 25 15 VSIQ'"1 VSIQ'"2 c8 %fOC ±0..1 25 pA 0.4 V V 1.0 nS nS 240 LM567C LINEAR .INTEGRATED CIRCUIT CIRCUIT DESCRIPTION BLOCK DIAGRAM The LM567C monolithic tone decoder consists of a phase detector, low pass filter, and current controlled oscillator which comprise the basic Output 1 Filter phase-locked loop, plus an additional low pass filter and quadrature detector enabling detection on in-band signals. The device has a low Pass normally high open collector output capable of sinking 100 mAo Loop Fitte, 2 The input signal is applied to Pin 3 (20 kO nominal input reSistance). Free running frequency is controlled by an RC network at Pins 5 and 6 and can typically reach 500 kHz. A capacitor on Pin 1 serves as the output filter and eliminates out-of-band triggering. PLL filtering is accomplished with 'a capacitor on Pin 2; bandwidth and skew are also dependant upon the circuitry here. Bandwidth is adjustable from 0% to 14% of the center frequency. Pin 41s +Vcc (4.75 to 9V nominal, 10V maximum); Pin 7 is ground; and Pin 8 is open collector output, pulling loW when an in-band signal triggers the device. I Fig. 1 DEFINITION OF LM567C PARAMETERS CENTER FREQUENCY fo fo is the free-running frequency of the C L controlled oscillator with no input signal. It is determined by resistor R, between pins 5 and 6, and capacitor C, from pin 6 to ground fo can be approximated by fo=_1_ R,C, where R, is in ohms and C, is in farads. LARGEST DETECTION BANDWIDTH The largest detection bandwidth is the largest frequency range within Which an input signal above the threshold voltage will cause a logical zero state at the output. The maximum detection bandwidth corresponds to the lock range of the PLL. DETECTION BANDWIDTH (BW) The detection bandwidth is the frequency range centered about fo, within which an input signal larger than the threshold voltag/il (typically 20mVrms) will cause a logic zero state at the output. The detection bandwidth corresponds to the 'capture range of the PLL and is determined by the low-pass bandwidth filter. The bandwidth of the filter, as a percent of fo, can be determined by the approximation where V; is the input signal in volts, rms, and C~ is the capaCitance at pin 2 in I'F. DETECTION BAND SKEW The detection band skew is a measure of how accurately the largest detection band is centered about the center frequency, fo. It is defined as (fmax +fm;n -2fo)lIo, where fmax and Im;n are the frequencies corresponding to the edges of the detection band. If necessary, the detection band skew can be reduced to zero by an optional centering adjustment. c8SAMSUNG SEMICONDUCTOR 241 LINEAR INTEGRATED CIRCUIT LMS67C PIN DESCRIPTION OUTPUT FILTER - C3 (Pin 1) Capacitor C3 connected from pin 1 to ground forms a simple low-pass post detection filter to eliminate spurious outputs due to out-of-band signals. The time constant of the filter can be expressed as T3 =R3C3, where R3 (4.7kG) is the internal impedance at pin 1. The precise value of G3 is not entical for most applications. To eliminate the possibility of false triggering by spurious signals, it is recommended that C3 be 2: 2 C2, where C2 is the loop filter capacitance at pin 2. If the value of C3 becomes too large, the turn-on qr turn-off time of the output stage will be delayed until the voltage change across C3 reaches the threshold voltage. In certain applications, the delay may be desirable as a means of suppressing spurious outputs. Conversely, if the value of C3 is too small, the beat rate at the output of the quadrature detec. tor may cause a false logic level change at the output. (Pin 8) The average voltage (during lock) at pin 1 is a function of the inband input amplitude in accordance with the given transfer characteristic. LOOP FILTER - C2 (Pin 2) Capacitor C2 connected from pin 2 to ground serves as a single pole, low-pass filter for the PLL portion of the LM567C . The filter time constant is given by T2 =R2C2, where R2 (10 kG) is the impedance at pin 2. The selection of C2 is determined by the detection bandwidth requirements. For additional information see section on "Definition of LM567C Parameters". The voltage at pin 2, the phase detector output, is a linear function of frequency over the range of 0.95 to 1.05 fa, with a slope of approximately 20 mVl% frequency deviation. INPUT (Pin 3) The input signal is applied to pin 3 through a coupling capacitor. This terminal is internally biased at a dc level 2 volts above ground, and has an input impedance level of approximately 20 kG TIMING RESISTOR Rl AND CAPACITOR C1 (Pins 5 and 6) . The center frequency of the decoder is set by resistor R, between pins 5 and 6, and capacitor C, from 'pin 6 to ground, as shown in Figure 3. .pin 5 is the oscillator squarewave output which has a magnitude of approximately Vee - 1.4V and an average dc level of Vee/2. A 1 kG load may be driven from this point. The voltage at pin 6 is an exponential triangle waveform with a peakto-peak amplitude of 1 volt and an average dc level of Vecl2. Only high impedance loads should be connected to pin 6 avoid disturbi.ng the temperature stability or duty cycle of the oscillator. . LOGIC OUTPUT (Pin 8) Terminal 8 provides a binary logic output when an input signal is present within the pass-band of the decodef. The logic output is an uncommitted, "base-collector" power transistor capable of switching high CJrrent loads. The current level at the output is determined by an external load resistor, RL , connected from pin 8 to the positive supply. When an in'band signal is present, the output transistor at pin 8 saturates with a collector voltage less than 1 volt (typically 0.6V) at full rated current of 100 mAo If large output voltage swings are needed, Rl can be connected to a supply voltage, V+, higher than the Vee supply. For safe operation, V+ :s; 20 volts. c8 SAMSUNG SEMICONDUCTOR 242 LM567C LINEAR INTEGRATED CIRCUIT OPERATING INSTRUCTIONS SELECTION OF EXTERNAL COMPONENTS A typical connection diagram for the LM567C is shown in Figure 3. For most applications, the following procedure will be sufficient for determination of the external components At, Ct, C2 , and C3 • 1. At and Ct should be selected for the desired center frequency by the expression fa =l/AtCt. For optimum temperature stability, At should be selected such that 2kO, and the AtC t product should have sufficient stability over the projected operating temperature range. 2. Low-pass capacitor, C 2 , can be determined from the Bandwidth versus Input Signal Amplitude graph of Figure 7. One approach is to select an area of operation from the graph, and then adjust the input level and value of C2 accordingly. Or, if the input amplitude variation is known, the required foC2 product can be found to give the desired bandwidth. Constant bandwidth operation requires V,>200mV rms. Then, as noted on the graph, bandwidth will be controlled solely by the foC2 product. 3. Capacitor C 3 sets the band edge of the low-pass filter which attenuates frequencies outside of the detection band and thereby eliminales spurious outputs. If C3 is too small, frequencies adjacent to the detection band may switch the output stage off and on at the beat frequency, or the output may pulse off and on during the turn-on transient. a typical . minimum value of C 3 is 2 C2 • Conversely, if C3 is too large, turn-on and turn-off of the output stage will be delayed until the voltage across C3 passes the threshold value. PRINCIPLE OF OPERATION The LM567C is a frequency selective tone decoder system based on the phase-locked loop (PLL) principle. the system is comprised of a phase-locked loop, a quadrature AM detector, a voltage comparator, and an output logic driver. The four sections are internally interconnected as shown in Figure 1. When an· input tone is present within the pass-band of the circuit, the PLL synchronizes or "locks" on the input signal. The quadrature detector serves as a lock indicator: when the PLL is locked on an input signal, the dc v'oltage at the output of the detector is shifted. This dc level shift is then converted to an output logic pulse by the amplifier and logic driver. The logic driver is a "bare collector" transistor stage capable of switching 100 mA loads. The logic output at pin 8 is normally in a "high" state, until a tone that is within the capture range of the decoder is present at the input. When the decoder is locked on an input signal, the logic output at pin 8 goes to a "low" state. The center frequency of the detector is set by the free-running frequency of the current-controlled oscillator in the PLL. This free-running frequency, fa, is determined by the selection of At and C t connected to pins 5 and 6, as shown in Figure 3. The detection bandwidth is determined by the size of the PLL filter capacitor, C2; and the output response speed is controlled by the output filter capacitor, C3 c8 SAMSUNG SEMICONDUCTOR 243 II LINEAR INTEGRATED CIRCUIT LM567C TYPICAL CHARACTERISTICS (Fig. 2) TYP. BW YS T~PERATURE CENTER FREQ. YS TEMPERATURE 14 - 12 8 ..... 6_ .....; 4_ r--.. 2 -is 0 7& 25 - 100 TEIIPEIW'UIII rei BW YS CENTER FREQUENCY ......... o 10 12 14 100 18 aw~allO) 11( --lIII0 101( CURRENT DRAIN VB. BW (Ca. C3 CHARCt) ~ ~~ ~ t': "" 1001< 111 w::c I JI f'\ t\ea ~ ["-.... f'\ 1'-1"--l"'- t- 2" c8 4 10 12 14 SAMSUNG SEMICONDUCTOR 18 244 LMS67C' LINEAR INTEGRATED CIRCUIT OUTPUT SATURATION VOLTAGE VB AMBIENT TEMPERATURE OPERATING CYCLE VB BANDWIDTH 1000 500 "- "\A "\ 50 " v~.5v,L~ -t- 1.0 ~- 1 _ -- - ' - D.8 II: Bandwidth IImII8d bV c.- B: BandWidth Ilmllod bV external resistor (MInimum Ca) ~ r-- f\. ~r'\ ~ " t\.. "- 20 10 I'\. 0,2 "' 10 50 20 ---,... , -25 100 L_100mA V IL_30mA 25 / 50 --- 75 II /" 100 BANDWIDTH ("C) BANDWIDTH (1Ma 01 10) AC TEST CIRCUIT +5V LM567C Yin +5V fi=100KHz Note: Adjust for fo=1OOKHz Fig. 2 c8 SAMSUNG SEMICONDUCTOR 245 (d) Frequency Doubler AL 8 6 3 5 lSL AL ./ c8 Al =6.8K to 15K R2-4.7K A3=20K SAMSUNG SEMICONDUCTOR 'C2~ 10 ~Cl 246 LM567L LINEAR INTEGRATED CIRCUIT MICROPOWER TONE DECODER 8 DIP The LM567L is a micropower phase-locked loop (PLL) circuit designed for general purpose tone and frequency decoding. In applications requiring very low power dissipation, the LM567L can replace the popular 567 type decoder with only minor component valu~ changes. The LM567L offers approximately 1I1Oth the power dissipation of the conventional567 type tone decoder, without sacrificing its key features such as the oscillator stability, frequency selectivity, and detection threshold. Typical quiescent power dissipation is less than 4mW at 5 volts. 8 SOP I FEATURES • Very low power dissipation (4mW at 5V) .. • • • • • • Bandwidth adjustable from 0 to 14% of fo Logic compatible output with 10mA current sinking capability. Highly stable center frequency_ Center frequency adjustable from 0.01 Hz to 60KHz. Inherent immunity to false signals. High rejection of out-of-band signals and noise. Frequency range adjustable over 20:1 range by external resistor. APPLICATIONS • BaHery-oPllrated tone detection • Touch-tone decoding • Sequential tone decoding • Communications paging • Ultrasonic remote-control • Telemetric decoding ORDERING INFORMATION Device Package LM567LN 8 DIP LM567LD 8 SOP Operating Temperature 0-+ 70·C SCHEMATIC DIAGRAM ·c8 SAMSUNG SEMICONDUCTOR 247 LINEAR INTEGRATED CIRCUIT LMS67L = , ABSOLUTE MAXIMUM RATINGS (Ta 25°C) Characteristic ' value Symbol Power Supply Power Dissipation Plastic Package Derate Above +25°C Operating Temperature Storage Temperature Unit Vee 10 V Pd 300 2.5 0- +70 -65 - +150 mW mWfOC °C °C Topr' Tstg ELECTRICAL CHARACTERISTICS (Vee = +5V, T. = 25°C, unless otherwise specilied.) Characteristic Symbol Supply Voltage Range Vee Supply Current/Quiescent Icc>, Supply Current/Activated leC>2 Highest Center Frequency Hlo Te,st Conditions Min Typ Max Unit 8.0 V 0.6 1.0 0.8 1.4 mA mA 4.75 RL=20KO, ' RL =20KO, V'N =300mV, I, =10 R1=3KO- 5KO 10 60 KHz -150 ppml°C Center Frequency Drift Temperature 0 200mVrms. Then, as noted on the graph, bandwidth will be . controlled solely by the fa C2 product. 3. Capacitor C3 sets the band edge of the low-pass filter which attenuates frequencies outside of the detection band and thereby eliminates spurious outputs. If C3 is too small, frequencies adjacent to the detection band may switch the output stage off and on at the beat frequency, or the output may pulse off and on during the turn-on transient. A typical minimum value for C3 is 2 C2. Conversely, if C3 is too large, turn-on and turn-off of the output stage will be delayed until the voltage across C3 passes the threshold value. PRECAUTIONS 1. The LM567L will lock on signals near (2n+l) fa and produce an output for signals near (4n+ 1) fa, for n=O, I, 2 etc. Signals at 5 fa and 9 fa can cause an unwanted output and should, therefore, be attenuated before reaching the input of the circuit. . 2. Operating the LM567L in a reduced bandwidth mode of operation at input levels less than.200mVrms results in maximum immunity to noise and out-band signals. Decreased loop damping, however, causes the worst-case lock-up . time to increase, as shown by the graph of Fig 13. c8 SAMSUNG SEMICONDUCTOR' 252 LM567L LINEAR INTEGRATED CIRCUIT 3. Bandwidth variations due to changes in the in-band signal amplitude can be eliminated by operating the LM567L in the high input level mode, above 200mV. The input stage is then limiting, however, so that out-band signals or high noise levels can cause an apparent bandwidth reduction as the in-band signal is suppressed. In addition, the limited input stage will create in-band components from subharmonic signals so that the circuit becomes sensitive to signals at fo/3, f0l5 etc. 4. Care should be exerc'ised in lead routing and lead lengths should be kept as short as possible. Power supply leads should be properly bypassed close to the integrated circuit and grounding paths should be carefully determined to avoid ground loops and undesirable voltage variations. In addition, circuits requiring heavy load currents should be provided by a separate power supply, or filter capacitors increased to minimize supply voltage variations. OPTIONAL CONTROLS PROGRAMMING Varying the value of resistor R1 and/or capaCitor C1 will change the center frequency. The value of R1 can be changed either mechanically or by solid state switches. Additional C1 capacitors can be added by grounding them through saturated npn transistors. SPEED OF RESPONSE The minimum lock-up time is inversely related to the loop frequency. As the natural loop frequency is lowered, the turn-on transients becomes greater. Thus maximum operating speed is obtained when the value of capaCitor C2 is minimum. At the instant an input Signal is applied, its phase may drive the oscillator away from the incoming frequency rather than toward it. Under this condition, the lock-up transient is in a worst case situation, and the minimum theoretical lock-up time will not be achievable. The follOWing expressions yield the values of C2 and C3, in microfarads, which allow the maximum operating speeds for various center frequencies where fa is Hz. 13 C2= - , fa 26 C3= fa Jl.F The minimum rate that digital information may be detected without losing information due to turn-on transient or output . chatter is about 10 cycles/bit, which corresponds to an information transfer rate of f0/10 baud. In situations where minimum turn-off is of less importance than fast turn-on, the optional sensitivity adjustment circuit of Fig 5 can be used to bring the quiescent C3 voltage closer to the threshold Voltage. Sensitivity to beat frequenCies, noise, and extraneous signals, however, will be increased. +V +V a1I LM567L 1 R DECREASE SNESITIVITY RA LM567L LM567L 1-'-'-1'-~~-~: 5DK C3 DECREASE SENSITIVITY , . INCREASE SENSITIVITY INCREASE SENSITIVITY SILICON DIODES FOR TEMPERATURE COMPENSATION (OPTIONAL) Fig. 5. Adjustable Sensitivity Connections ciS SAMSUNG SEMICONDUcroR 253 I LM567L LINEAR INTEGRATED CIRCUIT CHATTER When the value of C3 is small, the lock· transient and ac components at the lock detector output may cause the output stage to move through its threshold more than once, resulting in output chatter. Although some loads, such as lamps and relays will not respond to chatter, logic may interpret chatter as a series of output signals. Chatter can be eliminated by feeding a portion of the output back to the input (Pin 1) or, by increasing the size of capacitor C3. Generally, the feedback method is preferred since keeping C3 small will enable faster operation. Three . alternate schemes for chatter prevention are shown in Fig 6. Generally, it is only necessary to assure that the feedback time constant does not get so large that it prevents operation at the highest anticipated speed. +v +V RL LM567L +v i~~·'" RL LM567L C1 8 ~C3 RI' 100K 1 ~C3 +V R 10~K RL LM567L r8--t~-' Fig. 6. Methods of Reducing Chatter SKEW ADJUSTMENT The circuits shown in Fig 7 can be used to change the position of the detection band (capture range) within the largest detection band (lock range). By moving the detection band to either edge of the lock range, input signal variations will expand the detection band in one direction only, since R3 also has a slight effect on the duty cycle, this approach may be useful to obtain a precise duty cycle when the circuit is used as an oscillator. IL~_I' +V +V L --. 1 LOWERSfo R2 R1 LM567L LM567L 51( 50K lC2 RAISES 10 A3 1.0K RAISESfo SILICON DIODES FOR TEMPERATURE COMPENSATION (OPTIONAL) < Fig. 7. Detection Band Skew Adjustment .c8 SAMSUNG SEMICONDU~R 254 LM567L LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS FIG 8. SUPPLY CURRENT V. SUPPLY VOLTAGE FIG 9. LARGEST DETECTION BANDWIDTH V. OPERATING FREQUENCY 3. 0 15 1'\ "'- 2.5 NO LOAD "ON" ~ I 2. 0 i!§' u ~ V 1. 5 ,//" ~ II: i CURREN~ °vV 1. /V II ~SCENT CURRENT o. 5 -- o • 10 100Hz 10Hz SUPPLY VOLTAGE - VOLTS 1KHz 10KHz 100KHz CENTER FREQUENCY FIG 10. DETECTION BANDWIDTH V. A FUNCTION OF C2 AND C3 FIG 11. BANDWIDTH Vs INPUT SIGNAL AMPLITUDE (C2 IN ~F) 2W~--~~~~---+---+---r---r--~ C3 C2 16 10 BANDWIDTH - % OF to FIG 12. BANDWIDTH VARIATION WITH TEMPERATURE 1. 400 12.5 12 200 10 100 i!: " I 8 75 6 5.0 2.5 • rOWTTH 2 AT!25 0 C o -75 c8 -50 -25 1'\ 300 :2 t 25 50 TEMPERATURE,oC 14 16 FIG 13. GREATEST NUMBER OF CYCLES BEFORE OUTPUT 15.0 ~ 10.0 12 BANDWIDTH - % of to - -r-- 50 ---t--- 30 75 100 SAMSUNG SEMICONDUCTOR 125 1'\ l:\. '" I BANDWIDTH UMITED BY C2 '\l\. ~ "I 40 BANDWIDTH LIMITED BY EXTESNAL RESISTOR- I'Vt l 11 MuM 20 10 1 3 • 5 ~ 10 2J 20 1 30 4050 100 BANDWIDTH", 0110) 255 LM567L LINEAR INTEGRATED CIRCUIT FIG 15. TYPICAL CENTER FREQUENCY DRIFT WITH TEMPERATURE(V cc 5V,Rl 80kIJ,fo 1KHz) FIG 14. POWER SUPPLY DEPENDENCE' OF CENTER FREQUENCY = 1.2 1.1 1.0 0.9 5' I 0.8 I f------ il I = I 1- .......... '\ 100 Ii 0.7 I 0.6 ~ = 100 0.5 ~ 0.4 ~ -200 1/ IE ~-309 I 0.3 0.2 f\ \ d ·w -400 0:1 o 0.1 2 0.2 0.3 0.4 0.5 3 45 10 -500 -25. o· 25 50 75 TEMPERATURE, ·C CENTER FREQUENCY - KHz FIG 16. TYPICAL FREQUENCY DRIFT AS A FUNCTION OF TEMPERATURE cti: r--fo_1KHz """';;;::: f'\ "'\I\. \ V+=5V -4 -25 c8 25 TEMPERATURE, ·C I 50 SAMSUNG SEMICONDUCTO!=I. 75 256 MC1488 LINEAR INTEGRATED CIRCUIT QUAD LINE DRIVER The MC1488 is a monolithic quad line driver designed to interface data terminal equipment with data communications equipmen,t in conformance with the specifications of EIA Standard No. RS-232C. FEATURES Current Limited Output: ± 10mA typ Power-Off Source Impedance: 300 Ohms (min) Simple Slew Rate Control with External Capacitor Flexible Operating Supply Range Compatible with OTL and TTL, HCTLS Families • • • • • SCHEMATIC DIAGRAM I (1/4 of Circuit Shown) vee 14 300 OUTPUT PIN 6,8,11 or3 GND7 ORDERING INFORMATION Device Package MC1488N 14 DIP MC1488D 14 SOP Operating Temperature 0- + 70·C J 10K 70 VEE 1 ABSOLUTE MAXIMUM RATINGS (Ta = 25°C unless otherwise noted) Characteristic ~ Symbol value Unit Power Supply Voltage Vee VEE +15 -15 VDe . Input Voltage Range V'R -15sV,R s7.0 Voc Output Signal Voltage VD ::1:15 Voc Power Dissipation Po 1000 mW' 1/RllJA 6.7 mWJOC Ta 0-+70 °C Tstg -65-+150 °C Derate Above Ta = + 25°C Operating Temperature Range Storage Temperature Range c8 SAMSUNG SEMICONDUCTOR 257 LINEAR INTEGRATED CIRCUIT MC1488 ELECTRICAL CHARACTERISTICS (Vcc~9.0±1%V, VEE~-9.0 ± 1%V, Ta~0-70°C unless otherwise noted) Characteristic Symbol Input Current 1 I'L Input Current 2 I'H Test Conditions Min ' Low Logic State (V'L ~O) Unit Fig 1.0 1.6 mA 1 10 /LA 1 V 2 V 2 (V'H~5.0V) VOH V'L ~0.8V, RL ~3.0K(l Vee~13.2V, VEE~-13.2V V'H~1.9V, RL~3.0K(l Vee~9.0V, VEE~-9.0V Output Voltage-Low Logic State Max High Logic State V'L ~0.8V, RL ~3.0K(l Vce~9.0V, VEE~ -9:0V Output Voltage-High Logic State Typ VOL V,~~1.9V, RL~3.0K(l Vee~13.2V, VEE~-13.2V 6 7 9 10.5 -6 -7 -9 -10.5 Output Short Circuit .current 108+ Positive 6 10 12 mA 3 Output Short Circuit Current 108- Negative -6 -10 -12 mA 3 Output Resistance Ro Vee~VEE~O, Vo~ Positive Supply Cur~ent(RL=oo) lee ±2.0V 300 !l V'H~1.9V, Vee~+9.0V 15 V'L~0.8V, Vcc~ 4.5 6 V'H~1,9V, Vce~+12V 19 25 V'L=0.8V, Vce=+12V 5.5 7 +9.0V 20 12 V'L=0.8V, Vee=+15V -13 V'H=1.9V, VEE=-9.0V -17 Power Consumption -18 V'H=1.9V, VEE =-12V Pe mA -15 p.A -23 mA -15 p.A V'L =0.8V, VEE = -9.0V lEE 5 34 V'H= 1.9V, Vee = + 15V Negative Supply Curren't (RL=QO) mA V'L=0.8V, VEE = -12V V'H=1.9V, VEE =-15V -34 mA V'L=0.8V, VEE =-15V -2.5 mA Vee~9.0V, 333 VEE=-9.0V Vee = 12V, VEE,," -12V 5 mW 576 * MaximLim packa'ge power dissipation may be exceeded if all outputs are shorted simultaneously. SWITCHING CHARACTERISTICS (Vee=9.0±1%V, VEE =-9±1%V, Ta=0-25°C) Characteristic Typ Max Unit Fig ZL =3.0K and 15pF 275 350 nS 6 ZL =3.0K and 15pF 45 75 nS 6 ZL =3.0K and 15pF 55 100 nS 6 ZL =3.0K and 15pF 110 175 nS 6 Symbol Test Conditions Propagation' Delay Time tpLH Fall Time tTHL trLH Rise Time Propugation Delay Time c8 tpHL SAMSUNG SEMICONDUCTOR Min 258 MC1488 LINEAR INTEGRATED CIRCUIT DC TEST CIRCUIT FIGURE 1 INPUT CURRENT FIGURE 2 OUTPUT VOLTAGE +1.9V J 3K VIL 1 +5V FIGURE 3 OUTPUT SHORT CIRCUIT CURRENT Vee FIGURE 4 OUTPUT RESISTANCE (POWER OFF) VEE +1.9V L vee ±2Vdc ±6mAMax ciS SAMSUNG SEMICONDUCTOR 259 II LINEAR INTEGRATED CIRCUIT MC1488 FIGURE 5 POWER SUPPLY CURRENTS +1.9V J MC1488 VIL +0.8V Vee FIGURE 6 SWITCHING RESPON~E -"':""""'-i------'OVO VINO~-D---1--3K 15PF vo----tTHL and ItTLH Measured 10% to 90% c8 SAMSUNG .SEMICONDUCTOR . 260 LINEAR INTEGRATED CIRCUIT MC1488 TYPICAL PERFORMANCE CHARACTERISTICS FIGURE 7 - TRANSFER CHARACTERISTICS V. POWER-SUPPLY VOLTAGE FIGURE 8 - SHORT CIRCUIT OUTPUT CURRENT V. TEMPERATURE +12 +9.0 r- V"'r'r-r +6D - - -- - - Vcc=6V, VEE'''''-6V f-- r- -- -- Vcc-9V, VEE--9V r-- - II V'~VO 3K -9D -12~ o 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 __~__~__~~__L -__L-__L -__~ -55 +125 T, TEMl>ERATURE ("ell FIGURe 9 - OUTPUT SLEW RATE V. LOAD - CAPACITANCE 1000____. __ i +75 +25 V", INPUT VOLTAGE (V) FIGURE 10 - OUTPUT VOLTAGE AND CURRENT LIMITING CHARACTERISTICS 10 _ __ - ~ w Iii II: ~~ 5 === ~ _ V~I,'I~II r 10 m IIIWI! IIIII 10 to L--J....l.1J..Lll1111JJ..-.J-J 1111..LU1.lJJL----L.J..LLllJJl------,-J---LJ--WJlI to 10 10DOQ 1,000 _1>., CAPACITANCE (pF) -16 -12 -8.0 -4.0 +4.0 +8.0 +12 +16 Vo, OUTPUT VOLTAIlE'(V) FIGURE 11 - MAXIMUM OPEATING TEMPERATURE V. POWER SUPPLY VOLTAGE ,. " 14 ~ 12 I ~ 10 Vee' ian .&;3 ~ 6.0 iii 4_0 i 2D > ........ 3K ti OJ Hi "" .~ T , I -55 I +25 +75 +125 T, TEMPERATURE ("ell c8 SAMSUNG SEMICONDUCTOR 261 . LINEAR INTEGRATED CIRCUIT MC1488 APPLICATION INFORMATION The Electronic Industries Association (EIA) RS232C specification detail the requirements for the interface between data processing equipment and data communications equipment. This standard specifies not only the number and type of interface leads, but also the voltage levels to be used. The MCl488 quad driver and its companion circuit; the MC1489/A quad receiver, provide a complete interface system between DTL or TTL logic levels and the RS232C defined levels. The RS232C requirements as applied to drivers are discussed herein . • The required driver voltages are defined as between 5 and 15-volts in magnitude and are positive for a logic "0" and negative for a logic "1". These voltages are so defined when the drivers are terminated with a 3000 to 7000-ohm resistor. The MC1488 meets this voltage requirement by converting a DTUTTL logic level into RS232C levels with one stage of inve~ion. The RS232C specification further requires that during transitions, the driver output slew rate must not exceed 30 volts per microsecond. The inherent slew rate of the MC1488 is much too fast for ~his requirement. The current limited output of the FIGURE 12 - SLEW RATE Vs CAPACITANCE FORlsc=10mA 1000 _ _ 100 ._. l w Ii a: ~ OJ 10 C, CAPACITANCE (PF) device can be used to control this slew rate by connecting a capacitor to each driver output. The required capacitor can be easily determined by using the relationship C=los x tSf/AV from which Figure 12 is derived. Accordingly, a 33O-pF capacitor on each output will guarantee a worst case slew rate or 30 volts per microsecond. The interface driver is also required to withstand an accidental short to any other conductor in an interconnecting cable. The worst possible signal on any conductor would be another driver using a plus or minus 15-volt, 500-mA source. The MCl488 , is designed to indefinitely withstand such a short to all four outputs in a package as long as the power-supply voltages are greater than 9.0 volts (Le., Vcc~9.0 V:VEE~-9.0V). In some power-supply deSigns, a loss of system power causes a low impedance on the power-supply outputs. When this occurs, a low impedance to ground would exist at the power inputs to the MC1488 effectively shorting the 3OO-ohm output resistors to ground. If all four outputs were then shorted to plus or minus 15' volts, the power dissipation in these resistors would be excessive. Therefore, if the system is designed to permit low o-....-""'T"----~-~ - ,- -----'1"'---- ¢M ~ : MCl48s-1 : r--, I I I o-:-1 __,P-:-<> o-+-{-~I_-o o-t-i .._~ 1 o-~--r ••-., : o-~--r"" ! o-~- {. __,P-t--o Fig. 13 - Power supply protection to meet power-off fault conditions o-i-.L_}>I-o " ' __ r ___ J VEE 1 7.~ +, O-M--':":-'-~-----'-'-'-+--------:~.!-..L- ---- c8 SAMSUNG SEMICONDUCTOR 262 LINEAR INTEGRATED CIRCUIT MC1488 impedances to ground at the power-supplies of the drivers, a diode should be placed in each power-supply lead to prevent overheating in this fault condition. These two diodes, as shown in Figure 8, could be used to decouple all the driver packages in a system. (These same diodes will allow the MC1488 to withstand momentary shorts to the i25-volt limits specified in the earlier Standard RS232B.) The addition of the diodes also permits the MC1488 to withstand faults with power-supplies of less than the 9.0 volts stated above. The maximum short-circuit current allowable under fault conditions is more than guaranteed by the previously mentioned 10mA output current limiting. Other Applications The MC1488 is an extremely versatile line driver with a myriad of possible applications. Several features of the drivers enhance this versatility: 1. Output Current Limiting - this enables the circuit designer to define the output voltage levels independent of power'supplies and can be accomplished by diode clamping of the output pins. Figure 14 shows the MC1488 used as a DTL to MOS translator where the high-level voltage output is clamped one diode above ground. The resistor divider shown is used to reduce the output voltage below the 300mV above ground MOS input level limit. 2. Power-Supply Range - as can be seen from the schematic drawing of the drivers, the positive and negative driving elements of the device are essentially independent and do not require matching power-supplies. In fact, the positive sup-. ply can vary from a minimum seven volts (required for driving the negative pulldown section) to the maximum specified 15 volts. The negative supply can vary from approximately -2.5 volts to the minimum specified the positive or negative supplies as long as the current output limits are not exceeded. The combination of the current-limiting and supply-voltage features allow a wide combination of possible outputs within the same quad package. Thus if only a portion of the four drivers are used for driving RS232C lines, the remainder could be used for DTL to MOS or even DTL to DTL translation.Figure 15 shows one such combination. FIGURE 14DTLITTL-TO-MOS TRANSLATOR FIGURE 15 LOGIC TRANSLATOR APPLICATIONS +12V IJTL MOSOUTPUT (WITH VsS~GND) DTL TTL INPUT lK 10K DTL NAND ......... I - l -.....J:H--<,......---,>----'-f'--O DTL OUTPUT GATE -O.7V 10 +5.7V INPUT CTL M.HTL INPUT -12V -12V D--+-o--,..---r--O RTL OUTPUT -O.7V to +3.7V INPUT DTL MOS INPUT TYPICAL APPLICATION +12V LINE DRIVER MC1488 INTERCONNECTING. LINE RECEIVER CABLE MC1489 -12V PIN CONNECTIONS ...r--'~...r--,0- TTLlDTL TTLlDTL -I -L __ / "1- __ " I I I-I I I I --l I I INTERCONNECTING CABLE c8 SAMSUNG SEMICONDUCTOR 263 II MC1489/MC1489A LINEAR INTEGRATED CIRCUIT QUAD LINE RECEIVER '14 DIP The MC1489 monolithic quad line receivers are designed to interface data terminal equipment with data communications equipment in conformance with the specifications of EIA Standard No. RS-232C. FEATURES • Input Resistance - 3.0KO to 7.0KO • Input Signal Range - ± 30 Volts • Response Control a) Logic Threshold Shifting b) Input Noise Filtering • Input Threshold Hysteresis Built in 14 SOP SCHEMATIC DIAGRAM (1/4 OF CIRCUIT SHOWN) r---....-~--Ov~ 14 9K 1.6K ORDERING INFORMATION RESPONSE RF CONTR0lO---_p----...."N\,....-+---; Pins 2, 5, 9, 12 Device MC1489N OUTPUT Pins3,S,8,n 3.55K INPUT Pins 1, 4, 10, 13 MC1489AN MC1489D MC1489AD Package Operating Temperature 14 DIP 0-+ 7Q·C 14 SOP 10K 7 ABSOLUTE MAXIMUM RATINGS (Ta =25°C) Characteristic ~er Supply Voltage Symbol Value Unit Vee .10 Voc Input Voltage Range V'R ±30 Voe Output Load Current IL 20 mA Po 1/IJJA 1000 6.7 mW mWI"C T. Oto +70 °C Power Dissipation Derate Above T. = + 25"C Operating Temperature Storage Temperature ciS SAMS,-!NG SEMICONDUCTOR' Tstg -65 to +150 °C 264 LINEAR INTEGRATED CIRCUITS MC1489/MC1489A ELECTRICAL CHARACTERISTICS (Vee =5.0± 10%V, Ta =0 _70°C unless otherwise noted) Characteristic Test Conditions .Symbol Positive Input Current Min V,H =25Vdc 3.6 V,H =3.0Vdc 0.43 r---' I'H -3.6 r-' I'L Input Turn-On Thereshold Voltage MC1489 MC1489A "" .. 1.0 1.75 _--- r---- Ta=25°C, VOH 2: 2.5V, ic=O.5mA . Output Voltage High VOH V,H =0.75V,IL=-0.5mA Input Open, IL = - 0.5mA Output Voltage Low VOL V,L =3.0V,IL=10mA Output Short Circuit Current 8.3 mA ~--. ~-- -8.3 mA Ta=25°C, VOL s 0.45V V'L Input Turn-Off Threshold Voltage -- Unit -0.43 V'L = -3.0Vdc V,H .. 1---- Max "- - - -1 - - -f---- V,L =-25Vdc Negative Input Current- TYP 1.5 2.25 Vdc 1.25 Vdc 4.0 4.0 5.0 5.0 Vdc 1.95 -- 0.75 2.5 2.5 los Power Supply Current lee All gates "on", lOUT =OmA, V'H=5.0V Power Consumption Pe V'H=5.0V I--. 0.2 0.45 Vdc -3.0 -4.0 mA 16 26 mA 80 130 mW TYP Max Unit 25 120 25 10 85 175 50 20 nS nS nS nS' SWITCHING CHARACTERISTICS (Vee=5.0±1%V, Ta =25°C, See Fig. 1) Characteristic Propagation Delay Time Rise Time Propagation Delay Time Fall Time Symbol Test Conditions Min RL=3.9KO RL=3.9KO RL=3900 RL=3900 tpLH IrLH tpHL IrHL TYPICAL APPLICATION PIN CONNECTIONS LINE DRIVER MC1488 INTERC0NNEcriNG LINE RECEIVER MC1489 ...r---~--""t TTLlDTL-=!. __ ~> ~ L-/ ... __ ..~ TTLlDTL InputA 1 Response ControlA 2 12 Response Control 0 I I I --; ! : I r-- I I INTERCONNEcrlNG CABLE c8 SAMSUN~ SEMICONDUCTOR Response ControlB Inpu1C 9 Response Comrol C Ground 7 8 OutputC 265 II MC1489/MC1489A LINEAR INTEGRATED CIRCUIT TEST CIRCUIT SWITCHING RESPO~SE Fig 1 - Fig 2 - RESPONSE CONTROL NODE VR R ~----~----~~----VO Vln ~ O% Vin +3V Jr C~ CL RESPONSE NODE Von --~1/4-:--1 50% tPHL _ _ . - - - - - - - . Vo MCI489A tPlH ITLH and ITHL vo C; capacitor is for noise filtering R. relstor Is for threshold shifting measured 10%-90% . CL _15pF=total parasitic capacitance, which includes probe and wiring capacitances , TYPICAL PERFORMANCE CHARACTERISTICS (Vcc=5.0 Vdc Ta = + 25°C unless otherwise noted) Fig. 4 - TYPICAL TURN-ON THRESHOLD V. CAPACITANCE FROM RESPONSE CONTROL PIN 10 GND Fig. 3 - TYPICAL TURN-ON THRESHOLD V. CAPACITANCE FROM RESPONSE CONTROL PIN 10 GND MC1489 ~ • I------'\---+---+-----'lrl-------\ ~ i3~~~~~r+--~ IL-~--=:::~~ 10 100 1000 PW, INPUT PULSE WIDTH (.., c8 SAMSUNG SEMICONDUCTOR 10.000 10 100 1000 10,000 PW, INPUT PULSE WIDTH (nl, 266 LINEAR INTEGRATED CIRCUIT MC1489/MC1489A MC1489 INPUT THRESHOLD VOLTAGE ADJUSTMENT Fig. 6 Fig. 5 -INPUT CURRENT +10 6.0 +8.0 5D +6.0 ./ V 1./ /' AT AT 5K 13K AT AT ~ 11K V" V,h v" +5V +5V -5V YEO AT if, VIII ./ /' -6D Y -6.0 - '- L- VILH ::: V,HL ~ -10 -25-20 -15 -10 VIN, -5.0 0 +5.0 +10 +15 +20 +25 -3.0 -2.0 -1.0 INPUT VOLTAGE (V) Fig. 7 - MC1489A INPUT THRESHOLD VOLTAGE ADJUSTMENT - 2. 22 5D ... iw A, AT 5K ~r· 11K v" V" +5V -5V AT V" ~ g 0 20 18 16 ,. 6X 12 II: 10 .... .... :J DB [3 X - 0- V,LH -30 -20 -10 0 = V'Hl +3.0 +2.0 +10 Fig. 8 - INPUT THRESHOLD VOLTAGE VB. TEMPERATURE 8.0 AT 0 VI, INPUT VOLTAGEi(V) --r-- MC1489A V,LH r-- - I - - ~VIt-l r-- MC1489V,LH MC1489A VlI..H il! 0.6 ii I-- > 0.4 0.2 +10 +20 +30 +40 -60 VI, INPUT VOLTAGE (V) +120 T, TEMPERATURE (Ge) Fig. 9 -INPUT THRESHOLD VB. POWER SUPPLY VOLTAGE 2.0 V,HLM 1489A V,HL MC1489 V,LH MC1489 VllH MC1489A ,. o o 'D c8 12 6.0 Vee POWER SUPPLY VOLTAGE M SAMSUNG SEMICONDUCTOR 267 MC14891MC1489A LINEAR INTEGRATED CIRCUIT APPLICATION INFORMATION General Information The Electronic Industries Association (EIA) has released the R8-232C specification detailing the requirements for the interface between data processing equipment and data communications equipment. This standard specifies not only the number and type of interface leads, but also the voltage levels to be used. The MC1488 quad driver and its companion circuit, the MC1489 quad receiver, provide a complete interface system between OfL or TTL logic levels and the R8-232C defined levels. The RS-232C requirements as applied to receivers are discussed herein.' . The required 'input impedance is defined as between,30oo ohms and 7000 ohms for input voltages between 3.0 and 25 volts in magnitude; and any voltage on the receiver input in an open circuit condition must be le,ss than 2.0 volts in magnitude. The MC1489 circuits meet these requirements with a maximum open circuits meet these requirements with a maximum open circuit voltage of one VeE. The receiver shall detect a voltage between -3.0 and -25 volts as a Logic "1" and inputs between +3.0 and +25 volts as a Logic "0". On some interchange leads, an open circuit of power "OFF" condition (300 ohms or more to ground) shall be decoded as an "OFF" condition or Logic "1". For this reason, the input hystereSiS thresholds ofthe MC1489 circuits are all above ground. Thus an open or grounded input will cause the same output as a negative or Logic "1" input. Device Characteristics The MC1489 interface receivers have internal feedback from the second stage to the input stage providing input hysteresis for noise rejection. The MC1489 input has typical turn-on voltage of 1.25 volts and turn-off of 1.0 volt for typical hysteresis of 250mV. The MC1489A has typical turn-on of 1.95 volts and turn.-off of 0.8 volt for typically t 15 volts of hysteresis. 'Each receiver section has an external response control node in addition to the input and output pins, thereby allowing the designer to vary the input threshold voltage levels. A resistor can be connected between this node and an external powersupply. Figures 2, 6 1and 7 illustrate the input threshold voltage shift possible through this technique. This response node can also be used for the filterin!) of high-frequency, high-energy noise pulses. Figures 3 and' 4 show typical noise-pulse rejection for external capacitors of various sizes. These two operations on the response node can be combined or used individually for many combinations of interfacing applications. The MC1489 circuits are particularly useful for interfacing between MOS circuits and OfLffTL logic systems. In this application, the input threshold voltages are adjusted (with the appropriate supply and resistor ,values) to fall in the center of the MOS voltage logic levels. (See Figure 9). The response node may alSo be used as the receill6r input as long as the designer realizes that he may not drive this node with a low impedance source to a voltage greater than one diode above ground or less than one diode below ground. This feature is demonstrated in Figure10 where two receivers are slaved to the same line that must still meet the RS-232C impedance requirement. c8 SAMSUNG SEMICONDUCTOR 268 MC1489/MC1489A LINEAR INTEGRATED CIRCUIT Fig. 10 - TYPICAL TRANSLATOR APPLICATION - MOS TO DTL OR TTL +5Vdc . r---...\ R --1L. ___..." OTL or TIL r .. - ..... ---l , II +svdclrh' Fig. 11'- TYPICAL PARALLELING OF TWO MC1489/A RECEIVERS TO MEET RS-232C Vcc RESPONSE CONTROL PIN" r- - ---------- - - --I i 1/2 MC1489 . . . . .-t<' IN'~PU~T~_;'8:,:K~.Li-'----~+-H_ OUTPUT vcco--+----------, OUTPUT INPUT 8K RESPONSE CONTROL PIN J I I I I IL _______________________ JI ciS SAMSUNG SEMICONDUCTOR 269 LINEAR INTEGRATED. CIRCUIT MC3361 16 DIP LOW POWER NARROW BAND FM IF The MC3361 is designed for use in FM dual conversion communication equipment. It contains a complete narrow band FM demodulation system operable to less than 2.SV supply voltage. . FEATURES 16 SOP • Includes: Oscillator, Mixer, limiting Amp, Quadrature Discriml· nator, Active Filter, Squelch, Scan Control, and'Mute Switch • Stable operation with wide supply voltage (2.5V to 7.0V) • Low drain current (4.0mA "lYP. at Vcc =4.0V) • Excellent Input Sensitivity (-3dB limiting, 2.0"Vrms "lYp.) • Minimum number of external parts required. ORDERING INFORMATION BLOCK DIAGRAM Device Package MC3361N 16 DIP MC3361D 16 SOP Operating Temperature -20 -+ 10·C SQUELCH TRIGGER WITH HYSTERESIS ·DEMODUlAlOR Fig. 1 c8 SAMSUNG SEMICONDUCTOR 270 MC3361 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta =25°C) Characteristic Supply Voltage Detector Input Voltage Input Voltage (Vcc;;,4.0V) Mute Function Operating Temperature Storage Temperature value Unit 10 1.0 1.0 -0.5- +5.0 -20- +70 -65- + 150 V Vp.. p Vrms Vpeak °C °C Symbol Vcc Vo V'6 V'4 Top. TSIg II ELECTRICAL CHARACTERISTICS (Vee =4.0V, fo=10.7MHz, .:If= ± 3KHz, fmod =1KHz, Ta =25°C, Unless Otherwise Specified) Characteristic Symbol Test Conditions Min Typ Max Unit lee Squelch Off Squelch On 4.0 6.0 mA Input Limiting Voltage V,NL -3dB Limiting 2.0 /LV Detector Output Voltage V7 2.0 V Detector Output Impedance Zoo 400 ohm Recovered Audio Output Voltage Vo V,N =10mV 100 150 mVrms Filter Gain AVF f= 10KHz, V,N:= 5mV 40 48 dB Filter Output Voltage VOF 1.5 V Trigger Hysteresis VTH 50 mV Mute Function Low ROL ·10 ohm Mute Function High ROH 10 Mohm Scan Function Low V'31 Mute Off (V'2= 2V) Scan Function High V'3H Mute On (V'2=GND) Mixer Conversion Gain AVM 24 dB Mixer Input Resistance R, 3.3 Kohm Mixer Input CapaCitance C, 2.2 pF Circuit Current c8 SAMSUNG SEMICONDUCTOR 0.5 V V 3.0 271 LINEAR INTEGRATED CIRCUIT MC3361 PIN CONNECTIONS Pin 1: Oscillator Pin 3: Mixer Output Pin 5: Limiter Input Pin 7: Limiter Output Pin 9: Recovered Audio Output Pin 11: Filter Output Pin 13: Scan Control Pin 15: GND Pin 2: Oscillator Pin 4: Vcc Pin 6: Decoupling Pin 8: Quad Coil Pin 10: Filter Input Pin 12: Squelch In Pin 14: Mute Pin 16: Mixer Input 'rEST CIRCUIT vee 1--;---<> MIXER INPUT MURATA CFU 4550 1 - - - - - - < > AUDIO MUTE 1 - - - - - - - 0 SCAN CONTROL MC3361 l - - - - - - < > SQUELCH IN ~--'-tt---o FILTER OUT )-+--'II\f¥-'-H--O FILTER IN 1-"""'~1"""---o AF OUTPUT Quad coil Tokotype RMC-2A6597HM Fig, 2 c8 SAMSUNG SEM,ICONDUCTOR 272 MC3361 LINEAR INTEGRATED CIRCUIT CIRCUIT DESCRIPTION (see block diagram) Th~ MC3361 functions include an Oscillator, Mixer, FM IF limiting amplifier, FM demodulator, OP-amp, Scan control and Mute switch. The mixer combines the crystal controlled oscillator to convert the input frequency from 10.7MHz to an intermediate frequency of 455KHz, where, after external bandpass filtering, most of the amplification is done. A conventional quadrature detector is used to demodulate the FM signal. The a of the quad coil, which is determined by the external resistor placed across it, has multiple affects on the audio output. Increasing the a increases output level because of nonlinearities in the' tank phase characteristic. After detection and de-emphasis, the audio output at pin 9 is partially filtered, then buffered by an emitter follower. The signal still requires voiume control and further amplification before driving loudspeaker. The op amp inverting input (pin 10) which is internally referenced to 0.7V, receives DC bias from the output of pin 11 through the external feedback network. It is normally utilized as either a bandpass filter to extrect a specific frequency from th audio output, such as a ring or dial-tone, or as a highpass filter to detect noise due to no input at the mixer. This information is applied to pin 12. An external poSitive bias to pin 12 sets up the squelch trigger circuit such that pin 13 is low and the audio mute (pin 14) is open circuit. If pin 12 is pulled down to 0.5Vdc by the nQise or tone detector, pin 13 will rise to approximately 0.5Vdc below Vee and pin 14 is internally short circuited to ground. There is 50mV of hysteresis at pin 112 to prevent jitter.;Audio muting is accomplished by connecting pin 14 to a high-impedance ground-reference'point in the audio path between pin 9 and the audio amplifier. c8 SAMSUNG SEMICONDUCTOR 273 II NOTE ,>." -~, ~ k' Voltage Regulator Device Function 3 AMP Adjustable Positive Voltage Regulator' ' Regulator Pulse Width Modulator 3·Terrninal Positive Adjustable Regulator 3-Terminal Positive Voltage Regulator Precision Voltage Regulator Switching Regulator, 3A Positive Voltage Regulator 3·Terrnihal 1A Positive Voltage'Regulator 3·Terrninal Positive Voltage Regulator 3-Terminal 0.5A Positive Voltage Regulator 3·Terrnlnal Negative V.olt;lge Regulator 3·Terrninal 0.5A 'Negative Voltage Regulator KA350 KA3524 ' LM317 LM323 LM723 KA78540 KA78TXX MC78XX ~C78LXX MC78MXX MC79XX MC79MXX Package TO-3P 16 DIP TO·220 14 DIP/14 SOP 14 DIP(14 SOP 16 ,DIP TO·22O TO·22O TO·92 TO·22O TO·22O TO·220 Page 277 285 291 423 ' 300 306 312 323 353 364 377 387 , Voltage ,Reference KA336·5.0 KA385-1.2 KA431 • Voltage Reference Diode Micropower Voltage Reference Diode Programmable Precision Reference TO·92 TO·92 TO·9218 DIP/8 SOP 393 397 401 8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP 10 SIP HIS 8 DIP/8 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 8 DIP/8 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 8 DIP/8 SOP/9 SIP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP/9 SIP 407 407 412 419 421 423 432 438 423 432 438 ' 446 423 438 452 456 456 463 Operational Amplifier KA201 A KA301A KA733C KA9256 KF351 , LM224/A L"M248 LM2581A LM324/A LM348 LM3581A/S LM741C/ElI .LM2902 LM2904 MC14581C/S/I MC3303 MC3403 MC4558C/AC/I Single Operational Amplifier Single Operational Amplifier Differential Video Amplifier Dual Power Operational Amplifier Single Operational Amplifier Quad Operational Amplifier Quad Operational Amplifier' Quad Operational Amplifier Dual Operational Amplifier Dual Operational Amplifier Quad Operational Amplifier Single Operational Amplifier Quad Operational Amplifier Dual Operational Amplifier Dual Operational Amplifier Quad Operational Amplifier quad Operational' Amplifier Dual Operational Amplifier Voltage Comparator , KA319 KA3.61 KAnOC LM211 LM239/A LM293/A LM311 LM339/A LM3931A1S LM2901 LM2903 LM3302 Dual High Speed Voltage Comparator High Speed Voltage Comparator High Speed Voltage Comparator Voltage Comparator Quad Differential Comparator Dual Differential Comparator Voltage Comparato! Quad Differential Comparator Dual Differential Comparator Quad Differential Comparator Dual Differential Cpmparator Quad Differential Comparator ' 14 DIP/14 SOP 14 DIP/14 SOP 14 DIP/14 SOP 8 DIP/8 SOP 14 DIP/14 SOP 8 DIPI8 SOP ·8 DIP/S SOP 14 DIP/14, SOP 8 DIP/8 SOP 14 DIP/14 SOP S DIP/S SOP 14 DIP/14 SOP 468 472 474 476 481 489 476, 481 489 481 489 481 CMOS Timer CMOS Timer CMOS Timer Timer Dual Timer Dual Timer -8 DIP/8 SOP 8 DIP/8 SOP 14 DIP/14 SOP 8 DIP/8 SOP 14 DIP/14 SOP 16 DIP/16 SOP 496 501 505 Timer' KS555 KS555H KS556 NE555 .NE556 NE558 509 513 516 .LINEAR INTEGRATED CIRCUIT KA350 3 AMP ADJUSTABLE POSITIVE VOLTAGE REGULATOR 1"O-3P The KA350 is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 3.0A over an output voltage range of 1.2V to 33V. This voltage regulator is exceptionally easy to use and require only two external resistors to set the output voltage. Further, they employ internal current limiting, thermal shutdown and safe area compensation, making them essentially blow-out proof. All overload protection circuitry remains fully functional even if the adjustment terminal is accidentally disconnected. FEATURES • • • • • • • • • • Output adjustable between 1_2V and 33V Guranteed 3A output current Intemal thermal overload protection Load regulation typically 0-1 % Line regulation typically O_005%N Intemal short-circuit current limiting constant with temperature., . Output transistor safe-area compensation Floating operation for high voltage application Standard 3-lead transistor package Eliminates stoc~ing many fixed voltages 1: Ad) II 2: Output 3: Input ORDERING INFORMATION Operating Temperature o -J25~C BLOCK DIAGRAM VOLTAGE REFERENCE ADJ c8 ~AM~UNG SEMICONDUCTOR PROTECTION CIRCUITRY OUT 277 KA350 LINEAR INTEGRATED CIRCUIT , ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value Unit Input-Output Voltage Differential V,-Vo 35 Vee Soldering Lead Temperature (10 Seconds) T 'ead 300 °C Power Dissipation Po Internally limited Operating Temperature Range TI 0- + 125 °C T.,g -65-+150 °C Storage Temperature Range ELECTRICAL CHARACTERISTICS (V , - Vo = 5V, 10 = 1.5A, T, = aoc to 125°C; Pmax , unless otherwise speCified) Characteristic Test Conditions ,Symbol Line Regulation 6Vo Ta=25°C,3V-s.V,-Vo-s.35V (Note 1) Load Regulation 6Vo Ta=25°C,10mA-s.lo-s.3A Vo-s.5V (Note 1) Vo~5V (Note 1) Adjustment Pin Current lad! Adjustment Pin Current Change 61",,; 3V-s.V, -Vo -s.35V, 10mA-s.IL-s.3A, PO-s.PMAX Thermal Regulation VTAG Pulse";20mS, Ta=25°C Reference Voltage ' VAEF Line Regulation Load Regulation 3V-s.V, -Vo -s.35V,10mA-s.lo-s.3A 6Vo 3.0V-s.V,- Vo-s.35V 6Vo 10mA -s.lo-s.3.QA Vo-s.5.0V Min 1.2 Vo~5.0V Temperature Stability Ts Maximum Output Current IMAx , Minimum Load Current to Maintain Regulation ILMIN RMS Noise, % of Vo Ripple Rejection Long-Term Stability Tj=O°C to 125°C , Max Unit 0.005 0.03 %N 5 0.1 25 0.5 mV %N~ tJA, 50 100 0.2 5.0 0.002 "A %IW 1.25 1.30 V 0.02 0.07 %N 20 0.3 70 1.5 mV %\(0 1.0 %Vo V, -Vo::;10V, PO-s.PMAX 3.0 4.5 A V, -Vo=30V, PO-s.PMAX, Ta=25°C 0.25 1.0 A 3.5 V,-Vo=35V VN 10Hz-s.f-s.10KHz, Ta=25°C RR Vo =10V, f=120Hz, without CAOJ CAOJ = 10"F S Typ Tj =125°C 66 10 mA 0.003 %Vo 65 dB dB 80 0.3 1 % Note 1: Regul'ation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. ciS SAMSUNG SEMICONDUCTOR 278 KA3S0 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTIC 0.4 tw " 0.2 i r"",,- - t-5OOmA- w ...!i;.!:5A ~-O.2 g T,=25:'(;'- \ ~~ !;-O.4 ~ \ 05- 0.6 > 1 Fig. 28 284 LINEAR INTEGRATED CIRCUIT KA3524 REGULATOR PULSE WIDTH MODULATOR 16 DIP The KA3524 regulating pulse width modulator contains all of the control circuitry necessary to implement switching regulators of either polarity, transformer coupled DC to DC converters, transformerless polarity converters and voltage doublers, as well as other power control applications. This device includes a 5V voltage regulator capable of supplying up to 50mA to external circuitry, a control amplifier, an oscillator(a pulse width modulator, a phase splitting flip-flop, dual alternating output switch transistors, and current limiting and shut-down circuitry. Both the regulator output transistor"and each output switch are internally current limiting and, to limit junction temperature, an internal thermal shutdown 'circuit is employed. FEATURES • Complete PWM power control circuitry • Frequency adjustable to greater than 100KHz • 2% frequency stability with temperature • Total quiescent current less than 10mA • Dual alternating output switchs for both push-pull or slngle-ended applications • Current limit amplifier provides external component protection • On-chip protection against excessive junction temperllture and output current • SV, SOmA linear regulator output available to user ORDERING I INFORMATION Operetlng Temperature BLOCK D.IAGRAM 0-70·C OSCILLATOR OUTPUT CURRENT LIMIT GROUND (SUBSTRATE) Fig_ 1 c8 SAMSUNG SEMICONDUCTOR 285 KA3524 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value Unit Input Voltage Reference Output Current Output Current (Each Output) Oscillator Changing Currerit (pin 6 or 7) Lead Temperature (Soldering, 10 sec) Power Dissipation Operating Temperature Storage Temperature . VIN lrel 40 50 100 5 300' 1000 0-+70 -65-+150 V mA mA mA ·C mW ·C ·C 10 Ic~arge Tlead Po Topr Tstg ELECTRICAL CHARACTERISTICS (YIN = 20V, f = 20KHz, Ta = 0 to 70·C unless otherwise specified) Symbol Characteristic REFERENCE SECTION Test Conditions Max Unit 5.0 5.4 V Min Typ . Output Voltage Vref 4.6 Line Regulation Vlln• VIN =8-40V 10 30 mV Load Regulation VIOad IL =0-20mA 20 50 mV Ripple Rejection VRR f = 120Hz, Ta= 25·C 66 dB Short-Circuit Output Current Isc Vrel=O, Ta=25·C 100 mA Temperature Stability 0.3 Ta=25·C Long Term Stability 1 % 20 mV/Khr 350 KHz OSCILLATOR SECTION Maximum Frequency fMAX Initial Accuracy CT = 0.001ILF, RT = 2KD . RT and CT constant % 5 . VIN =8-40V, Ta=25·C Frequency Change with Voltage 6f 1 Frequency Change with Temperature 6f Over operating temperature range % 2 Output Amplitude (Pin 3) VA3 Ta=25·C 3.5 % V . Output Pulse Width (Pin 3) V3PW CT=0.01ILF, Ta=25·C 0.5 ILs Input Offset Voltage VIO VCM=2.5V 2 10 Input Bias Current liB VCM=2.5V 2 10 ERROR AMPLIFIER SECTION Open Loop Voltage Gain Common·Mode Input Voltage Range Common·Mode Rejection Ratio Small Signal Bandwidth Output Voltage Swing c8 60 Avo VCR Ta=25·C CMRR Ta=25·C BW Av=OdB, Ta=25·C Vosw Ta=25·C SAMSUNG SEMICONDUCTOR 80 1.8 ~ dB 3.4 70 V dB MHz 3 0.5 mV 3.8 V 286 KA3524 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Continued) (V,N=20V, f=20KHz, Ta=0-70°C unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Unit COMPARATOR SECTION Maximum Duty Cycle DCm.. % Each output on Input Threshold (Pin 9) VTH , Zero duty cycle 1 Input Threshold (Pin 9) VTH2 Maximum duty cycle 3.5 V 1 ,.A Input Bias Current 45 Ie % V CURRENT LIMITING SECTION 'Sense Voltage V(Pin 2) - V(Pin 1)~50mV Pin 9=2V, Ta=25°C Vsense 180 Sense Voltage T.C. 200 220 mV/oC 0.2 Common-Mode Current 0.7 mV 1 V ,0.1 50 ,.A 1 2 V OUTPUT SECTION (EACH OUTPUT) Collector-Emitter Voltage VCEO Collector Leakage Current ILKQ VcE =40V Saturation Voltage VSAT IC=50mA 40 Emitter Output Voltage VE V'N =20V, Rise Time (10% to 90%) tr Fall Time (90% to 10%) tf ISTD Total Standby Current 17 V 18 V RC=2KIl, Ta=25°C 0.2 ,.s RC=2KIl, Ta=25°C 0.1 ,.s V'N=40V, PINS 1, 4, 7, 8,11 and 14 are grounded, Pin 2=2V All other inputs and outputs open 5 10 mA APPLICATION INFORMATION Voltage Reference An internal series regulator provides a nominal 5 volt output which is used both to generate a reference voltage and is the regulated source for all the internal timing and controlling circuitry. This regulator may be bypassed for operation from a fixed 5 volt supply by connecting pins 15 and 16 together to the input voltage. In this configuration, thE> maximum input voltage is 6.0 volts. This reference regulator may be used as a 5 volt source for other circuitry. It will provide up to 50mA of current itself and can easily be expanded to higher current with an external PNP as' shown in Figure 2. EXPANDED REFERENCE CURRENT CAPABILITY VREF + 10~J ~E~~~~~G ON CHOICE FOR 0, GNDo---------------+-------~-o Fig. 2 i8 SAMSUNG SEMICONDUCTOR 287 II LINEAR INTEGRATED CIRCUIT KA3524 Oscillator The oscillator in the KA3524 uses an external resistor (RT) to establish a constant charging c;urr!!nt into an external capacitor (CT). While this uses more current than a series connected RC, it provides a linear ramp voltage on the capacitor which ,is also used as a reference for the comparator. The charging current is equal to 3.6V + RT and should be kept within the range of approximately 30~ to 2mA, i.e., 1.SK
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